74972012 has 12 divisors (see below), whose sum is σ = 135433536. Its totient is φ = 36276720.

The previous prime is 74971999. The next prime is 74972021. The reversal of 74972012 is 21027947.

It is a self number, because there is not a number n which added to its sum of digits gives 74972012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302183 + ... + 302430.

It is an arithmetic number, because the mean of its divisors is an integer number (11286128).

Almost surely, 2^74972012 is an apocalyptic number.

It is an amenable number.

74972012 is a deficient number, since it is larger than the sum of its proper divisors (60461524).

74972012 is a wasteful number, since it uses less digits than its factorization.

74972012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604648 (or 604646 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 74972012 is about 8658.6379991313. The cubic root of 74972012 is about 421.6638683610.

Adding to 74972012 its reverse (21027947), we get a palindrome (95999959).

The spelling of 74972012 in words is "seventy-four million, nine hundred seventy-two thousand, twelve".