318422746 has 4 divisors (see below), whose sum is σ = 477634122. Its totient is φ = 159211372.

The previous prime is 318422707. The next prime is 318422747. The reversal of 318422746 is 647224813.

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., 274266721 + 44156025 = 16561^2 + 6645^2 .

It is not an unprimeable number, because it can be changed into a prime (318422747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79605685 + ... + 79605688.

Almost surely, 2^318422746 is an apocalyptic number.

318422746 is a deficient number, since it is larger than the sum of its proper divisors (159211376).

318422746 is a wasteful number, since it uses less digits than its factorization.

318422746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159211375.

The product of its digits is 64512, while the sum is 37.

The square root of 318422746 is about 17844.4037726117. The cubic root of 318422746 is about 682.8647495945.

The spelling of 318422746 in words is "three hundred eighteen million, four hundred twenty-two thousand, seven hundred forty-six".