2313323440 has 40 divisors (see below), whose sum is σ = 5612328288. Its totient is φ = 885096960.

The previous prime is 2313323401. The next prime is 2313323471. The reversal of 2313323440 is 443233132.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626781 + ... + 630460.

Almost surely, 2^2313323440 is an apocalyptic number.

2313323440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2313323440 is an abundant number, since it is smaller than the sum of its proper divisors (3299004848).

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

2313323440 is a wasteful number, since it uses less digits than its factorization.

2313323440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257277 (or 1257271 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 2313323440 is about 48097.0211135783. The cubic root of 2313323440 is about 1322.5500597472.

Adding to 2313323440 its reverse (443233132), we get a palindrome (2756556572).

The spelling of 2313323440 in words is "two billion, three hundred thirteen million, three hundred twenty-three thousand, four hundred forty".