172242032 has 20 divisors (see below), whose sum is σ = 348229200. Its totient is φ = 82376448.

The previous prime is 172242029. The next prime is 172242053. The reversal of 172242032 is 230242271.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 172241989 and 172242007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233657 + ... + 234392.

It is an arithmetic number, because the mean of its divisors is an integer number (17411460).

Almost surely, 2^172242032 is an apocalyptic number.

It is an amenable number.

172242032 is an abundant number, since it is smaller than the sum of its proper divisors (175987168).

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

172242032 is a wasteful number, since it uses less digits than its factorization.

172242032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468080 (or 468074 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 172242032 is about 13124.1011882719. The cubic root of 172242032 is about 556.3905094354.

The spelling of 172242032 in words is "one hundred seventy-two million, two hundred forty-two thousand, thirty-two".