74732872 has 24 divisors (see below), whose sum is σ = 142315110. Its totient is φ = 36791040.

The previous prime is 74732863. The next prime is 74732893. The reversal of 74732872 is 27823747.

It can be written as a sum of positive squares in only one way, i.e., 66814276 + 7918596 = 8174^2 + 2814^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 34872 + ... + 36952.

Almost surely, 2^74732872 is an apocalyptic number.

It is an amenable number.

74732872 is a deficient number, since it is larger than the sum of its proper divisors (67582238).

74732872 is a wasteful number, since it uses less digits than its factorization.

74732872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221 (or 2150 counting only the distinct ones).

The product of its digits is 131712, while the sum is 40.

The square root of 74732872 is about 8644.8176383311. The cubic root of 74732872 is about 421.2150604263.

The spelling of 74732872 in words is "seventy-four million, seven hundred thirty-two thousand, eight hundred seventy-two".