72662620 has 24 divisors (see below), whose sum is σ = 154526400. Its totient is φ = 28696512.

The previous prime is 72662609. The next prime is 72662621. The reversal of 72662620 is 2626627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72662621) 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, 21415 + ... + 24574.

It is an arithmetic number, because the mean of its divisors is an integer number (6438600).

Almost surely, 2^72662620 is an apocalyptic number.

It is an amenable number.

72662620 is an abundant number, since it is smaller than the sum of its proper divisors (81863780).

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

72662620 is a wasteful number, since it uses less digits than its factorization.

72662620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46077 (or 46075 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 72662620 is about 8524.2372092757. The cubic root of 72662620 is about 417.2890779649.

The spelling of 72662620 in words is "seventy-two million, six hundred sixty-two thousand, six hundred twenty".