311442994 has 8 divisors (see below), whose sum is σ = 471790188. Its totient is φ = 154179600.

The previous prime is 311442973. The next prime is 311442997. The reversal of 311442994 is 499244113.

It can be written as a sum of positive squares in 2 ways, for example, as 293676769 + 17766225 = 17137^2 + 4215^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (311442997) 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, 770697 + ... + 771100.

Almost surely, 2^311442994 is an apocalyptic number.

311442994 is a deficient number, since it is larger than the sum of its proper divisors (160347194).

311442994 is a wasteful number, since it uses less digits than its factorization.

311442994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541900.

The product of its digits is 31104, while the sum is 37.

The square root of 311442994 is about 17647.7475616578. The cubic root of 311442994 is about 677.8384316966.

The spelling of 311442994 in words is "three hundred eleven million, four hundred forty-two thousand, nine hundred ninety-four".