172374942 has 16 divisors (see below), whose sum is σ = 355871232. Its totient is φ = 55604760.

The previous prime is 172374913. The next prime is 172374977. The reversal of 172374942 is 249473271.

It is a self number, because there is not a number n which added to its sum of digits gives 172374942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463188 + ... + 463559.

It is an arithmetic number, because the mean of its divisors is an integer number (22241952).

Almost surely, 2^172374942 is an apocalyptic number.

172374942 is an abundant number, since it is smaller than the sum of its proper divisors (183496290).

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

172374942 is a wasteful number, since it uses less digits than its factorization.

172374942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926783.

The product of its digits is 84672, while the sum is 39.

The square root of 172374942 is about 13129.1637966780. The cubic root of 172374942 is about 556.5335849453.

The spelling of 172374942 in words is "one hundred seventy-two million, three hundred seventy-four thousand, nine hundred forty-two".