313100442 has 24 divisors (see below), whose sum is σ = 679551444. Its totient is φ = 104187264.

The previous prime is 313100423. The next prime is 313100453. The reversal of 313100442 is 244001313.

It can be written as a sum of positive squares in 2 ways, for example, as 297252081 + 15848361 = 17241^2 + 3981^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 3993 + ... + 25340.

Almost surely, 2^313100442 is an apocalyptic number.

313100442 is an abundant number, since it is smaller than the sum of its proper divisors (366451002).

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

313100442 is a wasteful number, since it uses less digits than its factorization.

313100442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29934 (or 29931 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 313100442 is about 17694.6444440119. The cubic root of 313100442 is about 679.0387528375.

Adding to 313100442 its reverse (244001313), we get a palindrome (557101755).

The spelling of 313100442 in words is "three hundred thirteen million, one hundred thousand, four hundred forty-two".