2131798404 has 24 divisors (see below), whose sum is σ = 5235996640. Its totient is φ = 673199424.

The previous prime is 2131798397. The next prime is 2131798451. The reversal of 2131798404 is 4048971312.

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, 4674769 + ... + 4675224.

Almost surely, 2^2131798404 is an apocalyptic number.

It is an amenable number.

2131798404 is an abundant number, since it is smaller than the sum of its proper divisors (3104198236).

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

2131798404 is a wasteful number, since it uses less digits than its factorization.

2131798404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9350019 (or 9350017 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 2131798404 is about 46171.4024478356. The cubic root of 2131798404 is about 1287.0103641530.

The spelling of 2131798404 in words is "two billion, one hundred thirty-one million, seven hundred ninety-eight thousand, four hundred four".