2315905992 has 160 divisors (see below), whose sum is σ = 6758551800. Its totient is φ = 740275200.

The previous prime is 2315905981. The next prime is 2315906017. The reversal of 2315905992 is 2995095132.

2315905992 is a `hidden beast` number, since 2 + 3 + 1 + 59 + 0 + 599 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 246929796 + 2068976196 = 15714^2 + 45486^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1619934 + ... + 1621362.

Almost surely, 2^2315905992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2315905992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3379275900).

2315905992 is an abundant number, since it is smaller than the sum of its proper divisors (4442645808).

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

2315905992 is a wasteful number, since it uses less digits than its factorization.

2315905992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549 (or 1536 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 2315905992 is about 48123.8609423641. The cubic root of 2315905992 is about 1323.0420336191.

The spelling of 2315905992 in words is "two billion, three hundred fifteen million, nine hundred five thousand, nine hundred ninety-two".