5638492308 has 24 divisors (see below), whose sum is σ = 13512063712. Its totient is φ = 1828700064.

The previous prime is 5638492253. The next prime is 5638492367. The reversal of 5638492308 is 8032948365.

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, 6349210 + ... + 6350097.

Almost surely, 2^5638492308 is an apocalyptic number.

It is an amenable number.

5638492308 is an abundant number, since it is smaller than the sum of its proper divisors (7873571404).

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

5638492308 is a wasteful number, since it uses less digits than its factorization.

5638492308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12699351 (or 12699349 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The square root of 5638492308 is about 75089.8948461110. The cubic root of 5638492308 is about 1779.8674635147.

The spelling of 5638492308 in words is "five billion, six hundred thirty-eight million, four hundred ninety-two thousand, three hundred eight".