172432144 has 40 divisors (see below), whose sum is σ = 363816000. Its totient is φ = 78857856.

The previous prime is 172432121. The next prime is 172432159. The reversal of 172432144 is 441234271.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964 + ... + 18595.

It is an arithmetic number, because the mean of its divisors is an integer number (9095400).

Almost surely, 2^172432144 is an apocalyptic number.

It is an amenable number.

172432144 is an abundant number, since it is smaller than the sum of its proper divisors (191383856).

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

172432144 is a wasteful number, since it uses less digits than its factorization.

172432144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19615 (or 19609 counting only the distinct ones).

The product of its digits is 5376, while the sum is 28.

The square root of 172432144 is about 13131.3420487016. The cubic root of 172432144 is about 556.5951393549.

The spelling of 172432144 in words is "one hundred seventy-two million, four hundred thirty-two thousand, one hundred forty-four".