311345344 has 28 divisors (see below), whose sum is σ = 654170904. Its totient is φ = 146514944.

The previous prime is 311345341. The next prime is 311345351. The reversal of 311345344 is 443543113.

It is not an unprimeable number, because it can be changed into a prime (311345341) 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, 141994 + ... + 144169.

Almost surely, 2^311345344 is an apocalyptic number.

311345344 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

311345344 is an abundant number, since it is smaller than the sum of its proper divisors (342825560).

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

311345344 is a wasteful number, since it uses less digits than its factorization.

311345344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286192 (or 286182 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 311345344 is about 17644.9807027381. The cubic root of 311345344 is about 677.7675810185.

Adding to 311345344 its reverse (443543113), we get a palindrome (754888457).

The spelling of 311345344 in words is "three hundred eleven million, three hundred forty-five thousand, three hundred forty-four".