2315998720 has 240 divisors, whose sum is σ = 6647454000. Its totient is φ = 771047424.

The previous prime is 2315998687. The next prime is 2315998733. The reversal of 2315998720 is 278995132.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4641031 + ... + 4641529.

It is an arithmetic number, because the mean of its divisors is an integer number (27697725).

Almost surely, 2^2315998720 is an apocalyptic number.

2315998720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2315998720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3323727000).

2315998720 is an abundant number, since it is smaller than the sum of its proper divisors (4331455280).

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

2315998720 is an equidigital number, since it uses as much as digits as its factorization.

2315998720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 2315998720 is about 48124.8243633159. The cubic root of 2315998720 is about 1323.0596914176.

The spelling of 2315998720 in words is "two billion, three hundred fifteen million, nine hundred ninety-eight thousand, seven hundred twenty".