72669860 has 24 divisors (see below), whose sum is σ = 153139896. Its totient is φ = 28966400.

The previous prime is 72669841. The next prime is 72669901. The reversal of 72669860 is 6896627.

It can be written as a sum of positive squares in 4 ways, for example, as 18852964 + 53816896 = 4342^2 + 7336^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341 + ... + 12060.

It is an arithmetic number, because the mean of its divisors is an integer number (6380829).

Almost surely, 2^72669860 is an apocalyptic number.

It is an amenable number.

72669860 is an abundant number, since it is smaller than the sum of its proper divisors (80470036).

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

72669860 is a wasteful number, since it uses less digits than its factorization.

72669860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12703 (or 12701 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 72669860 is about 8524.6618701272. The cubic root of 72669860 is about 417.3029368678.

The spelling of 72669860 in words is "seventy-two million, six hundred sixty-nine thousand, eight hundred sixty".