74457660 has 48 divisors (see below), whose sum is σ = 215212032. Its totient is φ = 19214400.

The previous prime is 74457659. The next prime is 74457683. The reversal of 74457660 is 6675447.

It is a congruent number.

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, 18156 + ... + 21875.

It is an arithmetic number, because the mean of its divisors is an integer number (4483584).

Almost surely, 2^74457660 is an apocalyptic number.

It is an amenable number.

74457660 is an abundant number, since it is smaller than the sum of its proper divisors (140754372).

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

74457660 is a wasteful number, since it uses less digits than its factorization.

74457660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40074 (or 40072 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 39.

The square root of 74457660 is about 8628.8852118915. The cubic root of 74457660 is about 420.6973675280.

The spelling of 74457660 in words is "seventy-four million, four hundred fifty-seven thousand, six hundred sixty".