313423442 has 4 divisors (see below), whose sum is σ = 470135166. Its totient is φ = 156711720.

The previous prime is 313423433. The next prime is 313423457. The reversal of 313423442 is 244324313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 312193561 + 1229881 = 17669^2 + 1109^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78355859 + ... + 78355862.

Almost surely, 2^313423442 is an apocalyptic number.

313423442 is a deficient number, since it is larger than the sum of its proper divisors (156711724).

313423442 is a wasteful number, since it uses less digits than its factorization.

313423442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156711723.

The product of its digits is 6912, while the sum is 26.

The square root of 313423442 is about 17703.7691467100. The cubic root of 313423442 is about 679.2721754175.

Adding to 313423442 its reverse (244324313), we get a palindrome (557747755).

The spelling of 313423442 in words is "three hundred thirteen million, four hundred twenty-three thousand, four hundred forty-two".