2312613440 has 28 divisors (see below), whose sum is σ = 5506911516. Its totient is φ = 925045248.

The previous prime is 2312613431. The next prime is 2312613449. The reversal of 2312613440 is 443162132.

It is an interprime number because it is at equal distance from previous prime (2312613431) and next prime (2312613449).

It can be written as a sum of positive squares in 2 ways, for example, as 1771399744 + 541213696 = 42088^2 + 23264^2 .

It is not an unprimeable number, because it can be changed into a prime (2312613449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3613139 + ... + 3613778.

Almost surely, 2^2312613440 is an apocalyptic number.

2312613440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2312613440 is an abundant number, since it is smaller than the sum of its proper divisors (3194298076).

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

2312613440 is an equidigital number, since it uses as much as digits as its factorization.

2312613440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7226934 (or 7226924 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 2312613440 is about 48089.6396326693. The cubic root of 2312613440 is about 1322.4147412110.

Adding to 2312613440 its reverse (443162132), we get a palindrome (2755775572).

The spelling of 2312613440 in words is "two billion, three hundred twelve million, six hundred thirteen thousand, four hundred forty".