2172517430 has 16 divisors (see below), whose sum is σ = 4005910944. Its totient is φ = 847811520.

The previous prime is 2172517429. The next prime is 2172517441. The reversal of 2172517430 is 347152712.

It is a Curzon number.

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, 2649002 + ... + 2649821.

It is an arithmetic number, because the mean of its divisors is an integer number (250369434).

Almost surely, 2^2172517430 is an apocalyptic number.

2172517430 is a deficient number, since it is larger than the sum of its proper divisors (1833393514).

2172517430 is a wasteful number, since it uses less digits than its factorization.

2172517430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5298871.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 2172517430 is about 46610.2717220142. The cubic root of 2172517430 is about 1295.1530416468.

The spelling of 2172517430 in words is "two billion, one hundred seventy-two million, five hundred seventeen thousand, four hundred thirty".