311818948 has 18 divisors (see below), whose sum is σ = 634774686. Its totient is φ = 133636608.

The previous prime is 311818919. The next prime is 311818961. The reversal of 311818948 is 849818113.

It is a happy number.

311818948 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 307230784 + 4588164 = 17528^2 + 2142^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 795261 + ... + 795652.

Almost surely, 2^311818948 is an apocalyptic number.

It is an amenable number.

311818948 is an abundant number, since it is smaller than the sum of its proper divisors (322955738).

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

311818948 is a wasteful number, since it uses less digits than its factorization.

311818948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590931 (or 1590922 counting only the distinct ones).

The product of its digits is 55296, while the sum is 43.

The square root of 311818948 is about 17658.3959633937. The cubic root of 311818948 is about 678.1110697104. Note that the first 3 decimals are identical.

The spelling of 311818948 in words is "three hundred eleven million, eight hundred eighteen thousand, nine hundred forty-eight".