172044372 has 12 divisors (see below), whose sum is σ = 401436896. Its totient is φ = 57348120.

The previous prime is 172044371. The next prime is 172044377. The reversal of 172044372 is 273440271.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172044371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7168504 + ... + 7168527.

Almost surely, 2^172044372 is an apocalyptic number.

172044372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172044372 is an abundant number, since it is smaller than the sum of its proper divisors (229392524).

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

172044372 is a wasteful number, since it uses less digits than its factorization.

172044372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14337038 (or 14337036 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 172044372 is about 13116.5686061561. The cubic root of 172044372 is about 556.1775953900.

The spelling of 172044372 in words is "one hundred seventy-two million, forty-four thousand, three hundred seventy-two".