342639172 has 12 divisors (see below), whose sum is σ = 600922476. Its totient is φ = 170947040.

The previous prime is 342639161. The next prime is 342639191. The reversal of 342639172 is 271936243.

It can be written as a sum of positive squares in 2 ways, for example, as 159415876 + 183223296 = 12626^2 + 13536^2 .

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, 91063 + ... + 94750.

It is an arithmetic number, because the mean of its divisors is an integer number (50076873).

Almost surely, 2^342639172 is an apocalyptic number.

It is an amenable number.

342639172 is a deficient number, since it is larger than the sum of its proper divisors (258283304).

342639172 is a wasteful number, since it uses less digits than its factorization.

342639172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186278 (or 186276 counting only the distinct ones).

The product of its digits is 54432, while the sum is 37.

The square root of 342639172 is about 18510.5151738140. The cubic root of 342639172 is about 699.7544526520.

The spelling of 342639172 in words is "three hundred forty-two million, six hundred thirty-nine thousand, one hundred seventy-two".