72626140 has 24 divisors (see below), whose sum is σ = 156063600. Its totient is φ = 28374528.

The previous prime is 72626137. The next prime is 72626161. The reversal of 72626140 is 4162627.

It is a super-2 number, since 2×72626140² = 10549112422599200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72626099 and 72626108.

It is a congruent number.

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, 41365 + ... + 43084.

It is an arithmetic number, because the mean of its divisors is an integer number (6502650).

Almost surely, 2^72626140 is an apocalyptic number.

It is an amenable number.

72626140 is an abundant number, since it is smaller than the sum of its proper divisors (83437460).

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

72626140 is a wasteful number, since it uses less digits than its factorization.

72626140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84501 (or 84499 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 72626140 is about 8522.0971597372. The cubic root of 72626140 is about 417.2192334617.

Adding to 72626140 its reverse (4162627), we get a palindrome (76788767).

The spelling of 72626140 in words is "seventy-two million, six hundred twenty-six thousand, one hundred forty".