311434402 has 16 divisors (see below), whose sum is σ = 487649592. Its totient is φ = 149022720.

The previous prime is 311434397. The next prime is 311434411. The reversal of 311434402 is 204434113.

It can be written as a sum of positive squares in 4 ways, for example, as 190412401 + 121022001 = 13799^2 + 11001^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29983 + ... + 39010.

Almost surely, 2^311434402 is an apocalyptic number.

311434402 is a deficient number, since it is larger than the sum of its proper divisors (176215190).

311434402 is a wasteful number, since it uses less digits than its factorization.

311434402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69093.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 311434402 is about 17647.5041294796. The cubic root of 311434402 is about 677.8321983018.

Adding to 311434402 its reverse (204434113), we get a palindrome (515868515).

The spelling of 311434402 in words is "three hundred eleven million, four hundred thirty-four thousand, four hundred two".