172216230 has 32 divisors (see below), whose sum is σ = 415065600. Its totient is φ = 45730272.

The previous prime is 172216229. The next prime is 172216243. The reversal of 172216230 is 32612271.

It is a self number, because there is not a number n which added to its sum of digits gives 172216230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4840 + ... + 19179.

It is an arithmetic number, because the mean of its divisors is an integer number (12970800).

Almost surely, 2^172216230 is an apocalyptic number.

172216230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172216230 is an abundant number, since it is smaller than the sum of its proper divisors (242849370).

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

172216230 is a wasteful number, since it uses less digits than its factorization.

172216230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24268.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 172216230 is about 13123.1181508055. The cubic root of 172216230 is about 556.3627254605.

The spelling of 172216230 in words is "one hundred seventy-two million, two hundred sixteen thousand, two hundred thirty".