318436648 has 16 divisors (see below), whose sum is σ = 598500000. Its totient is φ = 158836656.

The previous prime is 318436631. The next prime is 318436649. The reversal of 318436648 is 846634813.

It is a super-4 number, since 4×318436648⁴ (a number of 35 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (318436649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44148 + ... + 50851.

It is an arithmetic number, because the mean of its divisors is an integer number (37406250).

Almost surely, 2^318436648 is an apocalyptic number.

It is an amenable number.

318436648 is a deficient number, since it is larger than the sum of its proper divisors (280063352).

318436648 is a wasteful number, since it uses less digits than its factorization.

318436648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95424 (or 95420 counting only the distinct ones).

The product of its digits is 331776, while the sum is 43.

The square root of 318436648 is about 17844.7933022493. The cubic root of 318436648 is about 682.8746871673.

The spelling of 318436648 in words is "three hundred eighteen million, four hundred thirty-six thousand, six hundred forty-eight".