313031442 has 8 divisors (see below), whose sum is σ = 626062896. Its totient is φ = 104343812.

The previous prime is 313031419. The next prime is 313031461. The reversal of 313031442 is 244130313.

It is a sphenic number, since it is the product of 3 distinct primes.

313031442 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26085948 + ... + 26085959.

It is an arithmetic number, because the mean of its divisors is an integer number (78257862).

Almost surely, 2^313031442 is an apocalyptic number.

313031442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

313031442 is a wasteful number, since it uses less digits than its factorization.

313031442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52171912.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 313031442 is about 17692.6945940973. The cubic root of 313031442 is about 678.9888677634.

Adding to 313031442 its reverse (244130313), we get a palindrome (557161755).

The spelling of 313031442 in words is "three hundred thirteen million, thirty-one thousand, four hundred forty-two".