72814660 has 24 divisors (see below), whose sum is σ = 157844736. Its totient is φ = 28186080.

The previous prime is 72814649. The next prime is 72814667. The reversal of 72814660 is 6641827.

It is not an unprimeable number, because it can be changed into a prime (72814667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58102 + ... + 59341.

It is an arithmetic number, because the mean of its divisors is an integer number (6576864).

Almost surely, 2^72814660 is an apocalyptic number.

It is an amenable number.

72814660 is an abundant number, since it is smaller than the sum of its proper divisors (85030076).

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

72814660 is a wasteful number, since it uses less digits than its factorization.

72814660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117483 (or 117481 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 72814660 is about 8533.1506490862. The cubic root of 72814660 is about 417.5799218313.

The spelling of 72814660 in words is "seventy-two million, eight hundred fourteen thousand, six hundred sixty".