313440042 has 16 divisors (see below), whose sum is σ = 627151680. Its totient is φ = 104434752.

The previous prime is 313440031. The next prime is 313440047. The reversal of 313440042 is 240044313.

It is not an unprimeable number, because it can be changed into a prime (313440047) 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, 5643 + ... + 25665.

It is an arithmetic number, because the mean of its divisors is an integer number (39196980).

Almost surely, 2^313440042 is an apocalyptic number.

313440042 is an abundant number, since it is smaller than the sum of its proper divisors (313711638).

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

313440042 is a wasteful number, since it uses less digits than its factorization.

313440042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22637.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 313440042 is about 17704.2379672213. The cubic root of 313440042 is about 679.2841674146.

Adding to 313440042 its reverse (240044313), we get a palindrome (553484355).

The spelling of 313440042 in words is "three hundred thirteen million, four hundred forty thousand, forty-two".