2131583240 has 32 divisors (see below), whose sum is σ = 4833838080. Its totient is φ = 845917632.

The previous prime is 2131583239. The next prime is 2131583257. The reversal of 2131583240 is 423851312.

It is a happy 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, 204722 + ... + 214881.

It is an arithmetic number, because the mean of its divisors is an integer number (151057440).

Almost surely, 2^2131583240 is an apocalyptic number.

2131583240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131583240 is an abundant number, since it is smaller than the sum of its proper divisors (2702254840).

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

2131583240 is a wasteful number, since it uses less digits than its factorization.

2131583240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419741 (or 419737 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2131583240 is about 46169.0723320276. The cubic root of 2131583240 is about 1286.9670630581.

The spelling of 2131583240 in words is "two billion, one hundred thirty-one million, five hundred eighty-three thousand, two hundred forty".