2639994232 has 16 divisors (see below), whose sum is σ = 4956505200. Its totient is φ = 1318259520.

The previous prime is 2639994221. The next prime is 2639994241. The reversal of 2639994232 is 2324999362.

It is a congruent number.

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, 210732 + ... + 222907.

It is an arithmetic number, because the mean of its divisors is an integer number (309781575).

Almost surely, 2^2639994232 is an apocalyptic number.

It is an amenable number.

2639994232 is a deficient number, since it is larger than the sum of its proper divisors (2316510968).

2639994232 is a wasteful number, since it uses less digits than its factorization.

2639994232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434406 (or 434402 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 49.

The square root of 2639994232 is about 51380.8741848560. The cubic root of 2639994232 is about 1382.0836394530.

The spelling of 2639994232 in words is "two billion, six hundred thirty-nine million, nine hundred ninety-four thousand, two hundred thirty-two".