2158072232 has 16 divisors (see below), whose sum is σ = 4122733140. Its totient is φ = 1058676736.

The previous prime is 2158072183. The next prime is 2158072237. The reversal of 2158072232 is 2322708512.

It can be written as a sum of positive squares in 2 ways, for example, as 2034551236 + 123520996 = 45106^2 + 11114^2 .

It is not an unprimeable number, because it can be changed into a prime (2158072237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2544473 + ... + 2545320.

Almost surely, 2^2158072232 is an apocalyptic number.

It is an amenable number.

2158072232 is a deficient number, since it is larger than the sum of its proper divisors (1964660908).

2158072232 is a wasteful number, since it uses less digits than its factorization.

2158072232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5089852 (or 5089848 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 2158072232 is about 46455.0560434491. The cubic root of 2158072232 is about 1292.2761393489.

The spelling of 2158072232 in words is "two billion, one hundred fifty-eight million, seventy-two thousand, two hundred thirty-two".