74509912 has 32 divisors (see below), whose sum is σ = 148327200. Its totient is φ = 34968064.

The previous prime is 74509909. The next prime is 74509913. The reversal of 74509912 is 21990547.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74509913) 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 in 7 ways as a sum of consecutive naturals, for example, 88389 + ... + 89227.

It is an arithmetic number, because the mean of its divisors is an integer number (4635225).

Almost surely, 2^74509912 is an apocalyptic number.

It is an amenable number.

74509912 is a deficient number, since it is larger than the sum of its proper divisors (73817288).

74509912 is a wasteful number, since it uses less digits than its factorization.

74509912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515 (or 1511 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 74509912 is about 8631.9124184621. The cubic root of 74509912 is about 420.7957551606.

The spelling of 74509912 in words is "seventy-four million, five hundred nine thousand, nine hundred twelve".