74930688 has 240 divisors, whose sum is σ = 260447616. Its totient is φ = 20275200.

The previous prime is 74930683. The next prime is 74930701. The reversal of 74930688 is 88603947.

It is a happy number.

It is a super-2 number, since 2×74930688² = 11229216008306688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74930683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 741838 + ... + 741938.

Almost surely, 2^74930688 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 74930688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130223808).

74930688 is an abundant number, since it is smaller than the sum of its proper divisors (185516928).

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

74930688 is a wasteful number, since it uses less digits than its factorization.

74930688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 74930688 is about 8656.2513826714. The cubic root of 74930688 is about 421.5863814888.

The spelling of 74930688 in words is "seventy-four million, nine hundred thirty thousand, six hundred eighty-eight".