313040402442 has 24 divisors (see below), whose sum is σ = 678410331300. Its totient is φ = 104322781440.

The previous prime is 313040402419. The next prime is 313040402459. The reversal of 313040402442 is 244204040313.

It is a happy number.

313040402442 is a `hidden beast` number, since 3 + 13 + 0 + 404 + 0 + 244 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 299667561561 + 13372840881 = 547419^2 + 115641^2 .

It is a super-2 number, since 2×313040402442² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1921159 + ... + 2077722.

Almost surely, 2^313040402442 is an apocalyptic number.

313040402442 is an abundant number, since it is smaller than the sum of its proper divisors (365369928858).

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

313040402442 is a wasteful number, since it uses less digits than its factorization.

313040402442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003238 (or 4003235 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 313040402442 its reverse (244204040313), we get a palindrome (557244442755).

The spelling of 313040402442 in words is "three hundred thirteen billion, forty million, four hundred two thousand, four hundred forty-two".