172230912 has 216 divisors, whose sum is σ = 580332480. Its totient is φ = 48107520.

The previous prime is 172230911. The next prime is 172230943. The reversal of 172230912 is 219032271.

It is not an unprimeable number, because it can be changed into a prime (172230911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 951462 + ... + 951642.

Almost surely, 2^172230912 is an apocalyptic number.

172230912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172230912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290166240).

172230912 is an abundant number, since it is smaller than the sum of its proper divisors (408101568).

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

172230912 is a wasteful number, since it uses less digits than its factorization.

172230912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 172230912 is about 13123.6775333746. The cubic root of 172230912 is about 556.3785355953.

The spelling of 172230912 in words is "one hundred seventy-two million, two hundred thirty thousand, nine hundred twelve".