2172908234 has 24 divisors (see below), whose sum is σ = 3913815168. Its totient is φ = 901204920.

The previous prime is 2172908219. The next prime is 2172908249. The reversal of 2172908234 is 4328092712.

It is an interprime number because it is at equal distance from previous prime (2172908219) and next prime (2172908249).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 354584 + ... + 360659.

It is an arithmetic number, because the mean of its divisors is an integer number (163075632).

Almost surely, 2^2172908234 is an apocalyptic number.

2172908234 is a deficient number, since it is larger than the sum of its proper divisors (1740906934).

2172908234 is a wasteful number, since it uses less digits than its factorization.

2172908234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715290 (or 715283 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 2172908234 is about 46614.4637853961. The cubic root of 2172908234 is about 1295.2306966651.

The spelling of 2172908234 in words is "two billion, one hundred seventy-two million, nine hundred eight thousand, two hundred thirty-four".