74402872 has 8 divisors (see below), whose sum is σ = 139505400. Its totient is φ = 37201432.

The previous prime is 74402849. The next prime is 74402873. The reversal of 74402872 is 27820447.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74402873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4650172 + ... + 4650187.

It is an arithmetic number, because the mean of its divisors is an integer number (17438175).

Almost surely, 2^74402872 is an apocalyptic number.

It is an amenable number.

74402872 is a deficient number, since it is larger than the sum of its proper divisors (65102528).

74402872 is a wasteful number, since it uses less digits than its factorization.

74402872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9300365 (or 9300361 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 74402872 is about 8625.7099417961. The cubic root of 74402872 is about 420.5941552993.

The spelling of 74402872 in words is "seventy-four million, four hundred two thousand, eight hundred seventy-two".