2031631404 has 48 divisors (see below), whose sum is σ = 5269017600. Its totient is φ = 604027840.

The previous prime is 2031631379. The next prime is 2031631501. The reversal of 2031631404 is 4041361302.

It is a super-2 number, since 2×2031631404² = 8255052323438022432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138204 + ... + 152195.

It is an arithmetic number, because the mean of its divisors is an integer number (109771200).

Almost surely, 2^2031631404 is an apocalyptic number.

It is an amenable number.

2031631404 is an abundant number, since it is smaller than the sum of its proper divisors (3237386196).

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

2031631404 is a wasteful number, since it uses less digits than its factorization.

2031631404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290470 (or 290468 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 2031631404 is about 45073.6220421656. The cubic root of 2031631404 is about 1266.5285160810.

Adding to 2031631404 its reverse (4041361302), we get a palindrome (6072992706).

The spelling of 2031631404 in words is "two billion, thirty-one million, six hundred thirty-one thousand, four hundred four".