74521924 has 12 divisors (see below), whose sum is σ = 133446544. Its totient is φ = 36394344.

The previous prime is 74521921. The next prime is 74521939. The reversal of 74521924 is 42912547.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 74521924.

It is not an unprimeable number, because it can be changed into a prime (74521921) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 216462 + ... + 216805.

Almost surely, 2^74521924 is an apocalyptic number.

It is an amenable number.

74521924 is a deficient number, since it is larger than the sum of its proper divisors (58924620).

74521924 is a wasteful number, since it uses less digits than its factorization.

74521924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433314 (or 433312 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 74521924 is about 8632.6081806138. The cubic root of 74521924 is about 420.8183665908.

The spelling of 74521924 in words is "seventy-four million, five hundred twenty-one thousand, nine hundred twenty-four".