313819972 has 12 divisors (see below), whose sum is σ = 552220396. Its totient is φ = 156042720.

The previous prime is 313819967. The next prime is 313820053. The reversal of 313819972 is 279918313.

It can be written as a sum of positive squares in 2 ways, for example, as 68459076 + 245360896 = 8274^2 + 15664^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216003 + ... + 217450.

Almost surely, 2^313819972 is an apocalyptic number.

It is an amenable number.

313819972 is a deficient number, since it is larger than the sum of its proper divisors (238400424).

313819972 is a wasteful number, since it uses less digits than its factorization.

313819972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433638 (or 433636 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 313819972 is about 17714.9646344552. The cubic root of 313819972 is about 679.5585167783.

The spelling of 313819972 in words is "three hundred thirteen million, eight hundred nineteen thousand, nine hundred seventy-two".