172712442 has 32 divisors (see below), whose sum is σ = 395724672. Its totient is φ = 49227264.

The previous prime is 172712437. The next prime is 172712443. The reversal of 172712442 is 244217271.

It is not an unprimeable number, because it can be changed into a prime (172712443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13438 + ... + 22934.

It is an arithmetic number, because the mean of its divisors is an integer number (12366396).

Almost surely, 2^172712442 is an apocalyptic number.

172712442 is an abundant number, since it is smaller than the sum of its proper divisors (223012230).

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

172712442 is a wasteful number, since it uses less digits than its factorization.

172712442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9942.

The product of its digits is 6272, while the sum is 30.

The square root of 172712442 is about 13142.0105767725. The cubic root of 172712442 is about 556.8965681592.

The spelling of 172712442 in words is "one hundred seventy-two million, seven hundred twelve thousand, four hundred forty-two".