74257612 has 48 divisors (see below), whose sum is σ = 153990144. Its totient is φ = 30888000.

The previous prime is 74257607. The next prime is 74257621. The reversal of 74257612 is 21675247.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74437 + ... + 75427.

It is an arithmetic number, because the mean of its divisors is an integer number (3208128).

Almost surely, 2^74257612 is an apocalyptic number.

It is an amenable number.

74257612 is an abundant number, since it is smaller than the sum of its proper divisors (79732532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74257612 is a wasteful number, since it uses less digits than its factorization.

74257612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150 (or 1148 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 74257612 is about 8617.2856515262. The cubic root of 74257612 is about 420.3202621536.

The spelling of 74257612 in words is "seventy-four million, two hundred fifty-seven thousand, six hundred twelve".