313144040 has 32 divisors (see below), whose sum is σ = 768627360. Its totient is φ = 113870400.

The previous prime is 313144021. The next prime is 313144081. The reversal of 313144040 is 40441313.

It is a happy number.

313144040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 355406 + ... + 356285.

It is an arithmetic number, because the mean of its divisors is an integer number (24019605).

Almost surely, 2^313144040 is an apocalyptic number.

It is an amenable number.

313144040 is an abundant number, since it is smaller than the sum of its proper divisors (455483320).

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

313144040 is a wasteful number, since it uses less digits than its factorization.

313144040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711713 (or 711709 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 313144040 is about 17695.8763558067. The cubic root of 313144040 is about 679.0702691962.

Adding to 313144040 its reverse (40441313), we get a palindrome (353585353).

The spelling of 313144040 in words is "three hundred thirteen million, one hundred forty-four thousand, forty".