311000434 has 16 divisors (see below), whose sum is σ = 487166400. Its totient is φ = 148622320.

The previous prime is 311000383. The next prime is 311000447. The reversal of 311000434 is 434000113.

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, 94944 + ... + 98164.

It is an arithmetic number, because the mean of its divisors is an integer number (30447900).

Almost surely, 2^311000434 is an apocalyptic number.

311000434 is a deficient number, since it is larger than the sum of its proper divisors (176165966).

311000434 is a wasteful number, since it uses less digits than its factorization.

311000434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5345.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 311000434 is about 17635.2043934852. The cubic root of 311000434 is about 677.5172103851.

Adding to 311000434 its reverse (434000113), we get a palindrome (745000547).

The spelling of 311000434 in words is "three hundred eleven million, four hundred thirty-four", and thus it is an aban number.