2131392288 has 48 divisors (see below), whose sum is σ = 5625861696. Its totient is φ = 706533120.

The previous prime is 2131392281. The next prime is 2131392293. The reversal of 2131392288 is 8822931312.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (2131392281) 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, 43956 + ... + 78707.

It is an arithmetic number, because the mean of its divisors is an integer number (117205452).

Almost surely, 2^2131392288 is an apocalyptic number.

It is an amenable number.

2131392288 is an abundant number, since it is smaller than the sum of its proper divisors (3494469408).

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

2131392288 is a wasteful number, since it uses less digits than its factorization.

2131392288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122857 (or 122849 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 2131392288 is about 46167.0043212682. The cubic root of 2131392288 is about 1286.9286321133.

The spelling of 2131392288 in words is "two billion, one hundred thirty-one million, three hundred ninety-two thousand, two hundred eighty-eight".