20131408304 has 40 divisors (see below), whose sum is σ = 45113779200. Its totient is φ = 8523793728.

The previous prime is 20131408301. The next prime is 20131408309. The reversal of 20131408304 is 40380413102.

It is not an unprimeable number, because it can be changed into a prime (20131408301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1073504 + ... + 1092095.

It is an arithmetic number, because the mean of its divisors is an integer number (1127844480).

Almost surely, 2^20131408304 is an apocalyptic number.

It is an amenable number.

20131408304 is an abundant number, since it is smaller than the sum of its proper divisors (24982370896).

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

20131408304 is a wasteful number, since it uses less digits than its factorization.

20131408304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165697 (or 2165691 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The spelling of 20131408304 in words is "twenty billion, one hundred thirty-one million, four hundred eight thousand, three hundred four".