74385512 has 8 divisors (see below), whose sum is σ = 139472850. Its totient is φ = 37192752.

The previous prime is 74385499. The next prime is 74385529. The reversal of 74385512 is 21558347.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 72352036 + 2033476 = 8506^2 + 1426^2 .

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

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 as a sum of consecutive naturals, namely, 4649087 + ... + 4649102.

Almost surely, 2^74385512 is an apocalyptic number.

It is an amenable number.

74385512 is a deficient number, since it is larger than the sum of its proper divisors (65087338).

74385512 is a wasteful number, since it uses less digits than its factorization.

74385512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9298195 (or 9298191 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 74385512 is about 8624.7035891096. The cubic root of 74385512 is about 420.5614411388.

The spelling of 74385512 in words is "seventy-four million, three hundred eighty-five thousand, five hundred twelve".