331220395 has 16 divisors (see below), whose sum is σ = 440951040. Its totient is φ = 236802400.

The previous prime is 331220389. The next prime is 331220413. The reversal of 331220395 is 593022133.

It is not a de Polignac number, because 331220395 - 2³ = 331220387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47791 + ... + 54280.

It is an arithmetic number, because the mean of its divisors is an integer number (27559440).

Almost surely, 2^331220395 is an apocalyptic number.

331220395 is a deficient number, since it is larger than the sum of its proper divisors (109730645).

331220395 is a wasteful number, since it uses less digits than its factorization.

331220395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102146.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 331220395 is about 18199.4613931292. The cubic root of 331220395 is about 691.8931382706.

The spelling of 331220395 in words is "three hundred thirty-one million, two hundred twenty thousand, three hundred ninety-five".