172042808 has 32 divisors (see below), whose sum is σ = 380559360. Its totient is φ = 71353440.

The previous prime is 172042757. The next prime is 172042831. The reversal of 172042808 is 808240271.

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, 47816 + ... + 51287.

It is an arithmetic number, because the mean of its divisors is an integer number (11892480).

Almost surely, 2^172042808 is an apocalyptic number.

It is an amenable number.

172042808 is an abundant number, since it is smaller than the sum of its proper divisors (208516552).

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

172042808 is a wasteful number, since it uses less digits than its factorization.

172042808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99147 (or 99143 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 172042808 is about 13116.5089867693. The cubic root of 172042808 is about 556.1759100411.

The spelling of 172042808 in words is "one hundred seventy-two million, forty-two thousand, eight hundred eight".