311436912 has 40 divisors (see below), whose sum is σ = 830502400. Its totient is φ = 100463040.

The previous prime is 311436883. The next prime is 311436913. The reversal of 311436912 is 219634113.

It is a self number, because there is not a number n which added to its sum of digits gives 311436912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311436913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103162 + ... + 106137.

It is an arithmetic number, because the mean of its divisors is an integer number (20762560).

Almost surely, 2^311436912 is an apocalyptic number.

It is an amenable number.

311436912 is an abundant number, since it is smaller than the sum of its proper divisors (519065488).

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

311436912 is a wasteful number, since it uses less digits than its factorization.

311436912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209341 (or 209335 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 311436912 is about 17647.5752442085. The cubic root of 311436912 is about 677.8340192891.

The spelling of 311436912 in words is "three hundred eleven million, four hundred thirty-six thousand, nine hundred twelve".