3112313440 has 24 divisors (see below), whose sum is σ = 7352840880. Its totient is φ = 1244925312.

The previous prime is 3112313431. The next prime is 3112313443. The reversal of 3112313440 is 443132113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112313443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9725820 + ... + 9726139.

It is an arithmetic number, because the mean of its divisors is an integer number (306368370).

Almost surely, 2^3112313440 is an apocalyptic number.

It is an amenable number.

3112313440 is an abundant number, since it is smaller than the sum of its proper divisors (4240527440).

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

3112313440 is a wasteful number, since it uses less digits than its factorization.

3112313440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19451974 (or 19451966 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 3112313440 is about 55788.1119952988. Note that the first 3 decimals coincide. The cubic root of 3112313440 is about 1460.0277470176.

Adding to 3112313440 its reverse (443132113), we get a palindrome (3555445553).

The spelling of 3112313440 in words is "three billion, one hundred twelve million, three hundred thirteen thousand, four hundred forty".