74651904 has 54 divisors (see below), whose sum is σ = 215246486. Its totient is φ = 24883200.

The previous prime is 74651873. The next prime is 74651909. The reversal of 74651904 is 40915647.

74651904 is a `hidden beast` number, since 7 + 465 + 190 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 74649600 + 2304 = 8640^2 + 48^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (74651909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13897 + ... + 18504.

Almost surely, 2^74651904 is an apocalyptic number.

It is an amenable number.

74651904 is an abundant number, since it is smaller than the sum of its proper divisors (140594582).

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

74651904 is a wasteful number, since it uses less digits than its factorization.

74651904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32423 (or 32406 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 74651904 is about 8640.1333323045. The cubic root of 74651904 is about 421.0628861362.

It can be divided in two parts, 746 and 51904, that added together give a triangular number (52650 = T₃₂₄).

The spelling of 74651904 in words is "seventy-four million, six hundred fifty-one thousand, nine hundred four".