74012392 has 8 divisors (see below), whose sum is σ = 138773250. Its totient is φ = 37006192.

The previous prime is 74012387. The next prime is 74012399. The reversal of 74012392 is 29321047.

It can be written as a sum of positive squares in only one way, i.e., 68657796 + 5354596 = 8286^2 + 2314^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 74012392.

It is not an unprimeable number, because it can be changed into a prime (74012399) 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, 4625767 + ... + 4625782.

Almost surely, 2^74012392 is an apocalyptic number.

It is an amenable number.

74012392 is a deficient number, since it is larger than the sum of its proper divisors (64760858).

74012392 is a wasteful number, since it uses less digits than its factorization.

74012392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9251555 (or 9251551 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 74012392 is about 8603.0455072608. The cubic root of 74012392 is about 419.8570791113.

The spelling of 74012392 in words is "seventy-four million, twelve thousand, three hundred ninety-two".