313442242 has 4 divisors (see below), whose sum is σ = 470163366. Its totient is φ = 156721120.

The previous prime is 313442231. The next prime is 313442273. The reversal of 313442242 is 242244313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242244313 = 557 ⋅434909.

It can be written as a sum of positive squares in only one way, i.e., 299670721 + 13771521 = 17311^2 + 3711^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78360559 + ... + 78360562.

Almost surely, 2^313442242 is an apocalyptic number.

313442242 is a deficient number, since it is larger than the sum of its proper divisors (156721124).

313442242 is a wasteful number, since it uses less digits than its factorization.

313442242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156721123.

The product of its digits is 4608, while the sum is 25.

The square root of 313442242 is about 17704.3000991285. The cubic root of 313442242 is about 679.2857566837.

Adding to 313442242 its reverse (242244313), we get a palindrome (555686555).

The spelling of 313442242 in words is "three hundred thirteen million, four hundred forty-two thousand, two hundred forty-two".