74572732 has 24 divisors (see below), whose sum is σ = 145077632. Its totient is φ = 33307200.

The previous prime is 74572711. The next prime is 74572741. The reversal of 74572732 is 23727547.

It is a super-2 number, since 2×74572732² = 11122184715887648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74572691 and 74572700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21519 + ... + 24742.

Almost surely, 2^74572732 is an apocalyptic number.

It is an amenable number.

74572732 is a deficient number, since it is larger than the sum of its proper divisors (70504900).

74572732 is a wasteful number, since it uses less digits than its factorization.

74572732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46309 (or 46307 counting only the distinct ones).

The product of its digits is 82320, while the sum is 37.

The square root of 74572732 is about 8635.5504746368. The cubic root of 74572732 is about 420.9139808798.

The spelling of 74572732 in words is "seventy-four million, five hundred seventy-two thousand, seven hundred thirty-two".