74428072 has 16 divisors (see below), whose sum is σ = 142522560. Its totient is φ = 36422064.

The previous prime is 74428063. The next prime is 74428129. The reversal of 74428072 is 27082447.

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, 98598 + ... + 99349.

It is an arithmetic number, because the mean of its divisors is an integer number (8907660).

Almost surely, 2^74428072 is an apocalyptic number.

It is an amenable number.

74428072 is a deficient number, since it is larger than the sum of its proper divisors (68094488).

74428072 is a wasteful number, since it uses less digits than its factorization.

74428072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198000 (or 197996 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 74428072 is about 8627.1705674572. The cubic root of 74428072 is about 420.6416345432.

The spelling of 74428072 in words is "seventy-four million, four hundred twenty-eight thousand, seventy-two".