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474440 = 23529409
BaseRepresentation
bin1110011110101001000
3220002210212
41303311020
5110140230
614100252
74014131
oct1636510
9802725
10474440
112a44aa
121aa688
13137c45
14c4c88
1595895
hex73d48

474440 has 32 divisors (see below), whose sum is σ = 1107000. Its totient is φ = 182784.

The previous prime is 474437. The next prime is 474443. The reversal of 474440 is 44474.

It is an interprime number because it is at equal distance from previous prime (474437) and next prime (474443).

It can be written as a sum of positive squares in 4 ways, for example, as 454276 + 20164 = 674^2 + 142^2 .

It is not an unprimeable number, because it can be changed into a prime (474443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956 + ... + 1364.

2474440 is an apocalyptic number.

474440 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 474440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553500).

474440 is an abundant number, since it is smaller than the sum of its proper divisors (632560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

474440 is a wasteful number, since it uses less digits than its factorization.

474440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 474440 is about 688.7960510920. The cubic root of 474440 is about 77.9938632034.

The spelling of 474440 in words is "four hundred seventy-four thousand, four hundred forty", and thus it is an iban number.

Divisors: 1 2 4 5 8 10 20 29 40 58 116 145 232 290 409 580 818 1160 1636 2045 3272 4090 8180 11861 16360 23722 47444 59305 94888 118610 237220 474440