172470132 has 36 divisors (see below), whose sum is σ = 437726016. Its totient is φ = 57258000.

The previous prime is 172470131. The next prime is 172470139. The reversal of 172470132 is 231074271.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 172470096 and 172470105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172470131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 508 + ... + 18579.

It is an arithmetic number, because the mean of its divisors is an integer number (12159056).

Almost surely, 2^172470132 is an apocalyptic number.

172470132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172470132 is an abundant number, since it is smaller than the sum of its proper divisors (265255884).

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

172470132 is a wasteful number, since it uses less digits than its factorization.

172470132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19348 (or 19343 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 172470132 is about 13132.7884320124. The cubic root of 172470132 is about 556.6360102798.

The spelling of 172470132 in words is "one hundred seventy-two million, four hundred seventy thousand, one hundred thirty-two".