74957432 has 64 divisors (see below), whose sum is σ = 163123200. Its totient is φ = 31933440.

The previous prime is 74957419. The next prime is 74957461. The reversal of 74957432 is 23475947.

It is a super-2 number, since 2×74957432² = 11237233224069248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74957432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212168 + ... + 212520.

It is an arithmetic number, because the mean of its divisors is an integer number (2548800).

Almost surely, 2^74957432 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 74957432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81561600).

74957432 is an abundant number, since it is smaller than the sum of its proper divisors (88165768).

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

74957432 is a wasteful number, since it uses less digits than its factorization.

74957432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 512 counting only the distinct ones).

The product of its digits is 211680, while the sum is 41.

The square root of 74957432 is about 8657.7960243933. The cubic root of 74957432 is about 421.6365325700.

The spelling of 74957432 in words is "seventy-four million, nine hundred fifty-seven thousand, four hundred thirty-two".