172382144 has 28 divisors (see below), whose sum is σ = 373169688. Its totient is φ = 78355200.

The previous prime is 172382143. The next prime is 172382167. The reversal of 172382144 is 441283271.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 172382144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172382143) 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, 121727 + ... + 123134.

Almost surely, 2^172382144 is an apocalyptic number.

It is an amenable number.

172382144 is an abundant number, since it is smaller than the sum of its proper divisors (200787544).

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

172382144 is a wasteful number, since it uses less digits than its factorization.

172382144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244884 (or 244874 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 172382144 is about 13129.4380687065. The cubic root of 172382144 is about 556.5413356834.

The spelling of 172382144 in words is "one hundred seventy-two million, three hundred eighty-two thousand, one hundred forty-four".