| Base | Representation |
|---|---|
| bin | 11101010000111… |
| … | …001100101100000 |
| 3 | 1021012211211110100 |
| 4 | 131100321211200 |
| 5 | 2001142010230 |
| 6 | 120415102400 |
| 7 | 15111112533 |
| oct | 3520714540 |
| 9 | 1235754410 |
| 10 | 490969440 |
| 11 | 232159675 |
| 12 | 118511a00 |
| 13 | 7a942880 |
| 14 | 492c4a1a |
| 15 | 2d182660 |
| hex | 1d439960 |
490969440 has 144 divisors (see below), whose sum is σ = 1804381488. Its totient is φ = 120849408.
The previous prime is 490969439. The next prime is 490969441. The reversal of 490969440 is 44969094.
It is an interprime number because it is at equal distance from previous prime (490969439) and next prime (490969441).
It is a tau number, because it is divible by the number of its divisors (144).
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (490969441) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5607 + ... + 31833.
It is an arithmetic number, because the mean of its divisors is an integer number (12530427).
Almost surely, 2490969440 is an apocalyptic number.
490969440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 490969440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (902190744).
490969440 is an abundant number, since it is smaller than the sum of its proper divisors (1313412048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
490969440 is a wasteful number, since it uses less digits than its factorization.
490969440 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26261 (or 26250 counting only the distinct ones).
The product of its (nonzero) digits is 279936, while the sum is 45.
The square root of 490969440 is about 22157.8302186834. The cubic root of 490969440 is about 788.8930927355.
The spelling of 490969440 in words is "four hundred ninety million, nine hundred sixty-nine thousand, four hundred forty".
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