72039100 has 36 divisors (see below), whose sum is σ = 178658704. Its totient is φ = 24698880.

The previous prime is 72039083. The next prime is 72039139. The reversal of 72039100 is 193027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50757 + ... + 52156.

Almost surely, 2^72039100 is an apocalyptic number.

72039100 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72039100 is an abundant number, since it is smaller than the sum of its proper divisors (106619604).

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

72039100 is a wasteful number, since it uses less digits than its factorization.

72039100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102934 (or 102927 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 72039100 is about 8487.5850511203. The cubic root of 72039100 is about 416.0920577210.

The spelling of 72039100 in words is "seventy-two million, thirty-nine thousand, one hundred".