313440242 has 16 divisors (see below), whose sum is σ = 477567360. Its totient is φ = 154263408.

The previous prime is 313440217. The next prime is 313440247. The reversal of 313440242 is 242044313.

It is not an unprimeable number, because it can be changed into a prime (313440247) 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, 51968 + ... + 57684.

It is an arithmetic number, because the mean of its divisors is an integer number (29847960).

Almost surely, 2^313440242 is an apocalyptic number.

313440242 is a deficient number, since it is larger than the sum of its proper divisors (164127118).

313440242 is a wasteful number, since it uses less digits than its factorization.

313440242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6145.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 313440242 is about 17704.2436155855. The cubic root of 313440242 is about 679.2843118939.

Adding to 313440242 its reverse (242044313), we get a palindrome (555484555).

The spelling of 313440242 in words is "three hundred thirteen million, four hundred forty thousand, two hundred forty-two".