313112440 has 32 divisors (see below), whose sum is σ = 715024080. Its totient is φ = 123374592.

The previous prime is 313112407. The next prime is 313112441. The reversal of 313112440 is 44211313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313112441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55737 + ... + 61096.

Almost surely, 2^313112440 is an apocalyptic number.

It is an amenable number.

313112440 is an abundant number, since it is smaller than the sum of its proper divisors (401911640).

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

313112440 is a wasteful number, since it uses less digits than its factorization.

313112440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116911 (or 116907 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 313112440 is about 17694.9834698990. The cubic root of 313112440 is about 679.0474263086.

Adding to 313112440 its reverse (44211313), we get a palindrome (357323753).

The spelling of 313112440 in words is "three hundred thirteen million, one hundred twelve thousand, four hundred forty".