331420294845228 has 48 divisors (see below), whose sum is σ = 818804648126304. Its totient is φ = 103974795509760.

The previous prime is 331420294845223. The next prime is 331420294845253. The reversal of 331420294845228 is 822548492024133.

It is a super-2 number, since 2×331420294845228² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331420294845221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134392588 + ... + 136836428.

It is an arithmetic number, because the mean of its divisors is an integer number (17058430169298).

Almost surely, 2^{331420294845228} is an apocalyptic number.

It is an amenable number.

331420294845228 is an abundant number, since it is smaller than the sum of its proper divisors (487384353281076).

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

331420294845228 is a wasteful number, since it uses less digits than its factorization.

331420294845228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108642 (or 3108640 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 57.

The spelling of 331420294845228 in words is "three hundred thirty-one trillion, four hundred twenty billion, two hundred ninety-four million, eight hundred forty-five thousand, two hundred twenty-eight".