74460640 has 24 divisors (see below), whose sum is σ = 175913640. Its totient is φ = 29784192.

The previous prime is 74460623. The next prime is 74460653. The reversal of 74460640 is 4606447.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232530 + ... + 232849.

It is an arithmetic number, because the mean of its divisors is an integer number (7329735).

Almost surely, 2^74460640 is an apocalyptic number.

It is an amenable number.

74460640 is an abundant number, since it is smaller than the sum of its proper divisors (101453000).

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

74460640 is a wasteful number, since it uses less digits than its factorization.

74460640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465394 (or 465386 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 74460640 is about 8629.0578860035. The cubic root of 74460640 is about 420.7029799410.

The spelling of 74460640 in words is "seventy-four million, four hundred sixty thousand, six hundred forty".