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74970464 = 2561193199
BaseRepresentation
bin1000111011111…
…11010101100000
312020001220010212
410131333111200
5123143023324
611234513252
71600144532
oct435772540
9166056125
1074970464
1139356468
1221135828
13126bc02a
149d57852
1568ad70e
hex477f560

74970464 has 48 divisors (see below), whose sum is σ = 151552800. Its totient is φ = 36495360.

The previous prime is 74970463. The next prime is 74970503. The reversal of 74970464 is 46407947.

It is a happy number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74970463) 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, 376637 + ... + 376835.

It is an arithmetic number, because the mean of its divisors is an integer number (3157350).

Almost surely, 274970464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74970464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75776400).

74970464 is an abundant number, since it is smaller than the sum of its proper divisors (76582336).

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

74970464 is a wasteful number, since it uses less digits than its factorization.

74970464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 74970464 is about 8658.5486081675. The cubic root of 74970464 is about 421.6609662107.

The spelling of 74970464 in words is "seventy-four million, nine hundred seventy thousand, four hundred sixty-four".

Divisors: 1 2 4 8 16 32 61 122 193 199 244 386 398 488 772 796 976 1544 1592 1952 3088 3184 6176 6368 11773 12139 23546 24278 38407 47092 48556 76814 94184 97112 153628 188368 194224 307256 376736 388448 614512 1229024 2342827 4685654 9371308 18742616 37485232 74970464