311355420 has 48 divisors (see below), whose sum is σ = 872847360. Its totient is φ = 82927936.

The previous prime is 311355419. The next prime is 311355431. The reversal of 311355420 is 24553113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56341 + ... + 61619.

It is an arithmetic number, because the mean of its divisors is an integer number (18184320).

Almost surely, 2^311355420 is an apocalyptic number.

311355420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

311355420 is an abundant number, since it is smaller than the sum of its proper divisors (561491940).

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

311355420 is a wasteful number, since it uses less digits than its factorization.

311355420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6274 (or 6272 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 311355420 is about 17645.2662207177. The cubic root of 311355420 is about 677.7748924201.

The spelling of 311355420 in words is "three hundred eleven million, three hundred fifty-five thousand, four hundred twenty".