72626544 has 50 divisors (see below), whose sum is σ = 210206040. Its totient is φ = 24208416.

The previous prime is 72626537. The next prime is 72626557. The reversal of 72626544 is 44562627.

It is a super-2 number, since 2×72626544² = 10549229786767872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 72626499 and 72626508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 26724 + ... + 29315.

Almost surely, 2^72626544 is an apocalyptic number.

It is an amenable number.

72626544 is an abundant number, since it is smaller than the sum of its proper divisors (137579496).

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

72626544 is a wasteful number, since it uses less digits than its factorization.

72626544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56059 (or 56044 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 72626544 is about 8522.1208627900. The cubic root of 72626544 is about 417.2200070870.

The spelling of 72626544 in words is "seventy-two million, six hundred twenty-six thousand, five hundred forty-four".