72855230 has 64 divisors (see below), whose sum is σ = 154524672. Its totient is φ = 24218880.

The previous prime is 72855229. The next prime is 72855247. The reversal of 72855230 is 3255827.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 531722 + ... + 531858.

It is an arithmetic number, because the mean of its divisors is an integer number (2414448).

Almost surely, 2^72855230 is an apocalyptic number.

72855230 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72855230 is an abundant number, since it is smaller than the sum of its proper divisors (81669442).

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

72855230 is a wasteful number, since it uses less digits than its factorization.

72855230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 72855230 is about 8535.5275173829. The cubic root of 72855230 is about 417.6574614918.

The spelling of 72855230 in words is "seventy-two million, eight hundred fifty-five thousand, two hundred thirty".