72624668 has 12 divisors (see below), whose sum is σ = 128625000. Its totient is φ = 35874672.

The previous prime is 72624637. The next prime is 72624677. The reversal of 72624668 is 86642627.

It is a super-2 number, since 2×72624668² = 10548684804220448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109043 + ... + 109706.

It is an arithmetic number, because the mean of its divisors is an integer number (10718750).

Almost surely, 2^72624668 is an apocalyptic number.

It is an amenable number.

72624668 is a deficient number, since it is larger than the sum of its proper divisors (56000332).

72624668 is a wasteful number, since it uses less digits than its factorization.

72624668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218836 (or 218834 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 72624668 is about 8522.0107955811. The cubic root of 72624668 is about 417.2164146839.

The spelling of 72624668 in words is "seventy-two million, six hundred twenty-four thousand, six hundred sixty-eight".