172439264 has 12 divisors (see below), whose sum is σ = 339489864. Its totient is φ = 86219616.

The previous prime is 172439261. The next prime is 172439273. The reversal of 172439264 is 462934271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172439261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2694332 + ... + 2694395.

It is an arithmetic number, because the mean of its divisors is an integer number (28290822).

Almost surely, 2^172439264 is an apocalyptic number.

It is an amenable number.

172439264 is a deficient number, since it is larger than the sum of its proper divisors (167050600).

172439264 is an equidigital number, since it uses as much as digits as its factorization.

172439264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5388737 (or 5388729 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 172439264 is about 13131.6131529984. The cubic root of 172439264 is about 556.6028001517.

The spelling of 172439264 in words is "one hundred seventy-two million, four hundred thirty-nine thousand, two hundred sixty-four".