172132640 has 48 divisors (see below), whose sum is σ = 407477952. Its totient is φ = 68715264.

The previous prime is 172132627. The next prime is 172132651. The reversal of 172132640 is 46231271.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125237 + ... + 126603.

It is an arithmetic number, because the mean of its divisors is an integer number (8489124).

Almost surely, 2^172132640 is an apocalyptic number.

172132640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172132640 is an abundant number, since it is smaller than the sum of its proper divisors (235345312).

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

172132640 is a wasteful number, since it uses less digits than its factorization.

172132640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169 (or 2161 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 172132640 is about 13119.9329266578. The cubic root of 172132640 is about 556.2726954507.

The spelling of 172132640 in words is "one hundred seventy-two million, one hundred thirty-two thousand, six hundred forty".