331082420 has 24 divisors (see below), whose sum is σ = 700353864. Its totient is φ = 131465216.

The previous prime is 331082407. The next prime is 331082461. The reversal of 331082420 is 24280133.

It can be written as a sum of positive squares in 4 ways, for example, as 64609444 + 266472976 = 8038^2 + 16324^2 .

It is a congruent number.

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, 57677 + ... + 63156.

It is an arithmetic number, because the mean of its divisors is an integer number (29181411).

Almost surely, 2^331082420 is an apocalyptic number.

It is an amenable number.

331082420 is an abundant number, since it is smaller than the sum of its proper divisors (369271444).

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

331082420 is a wasteful number, since it uses less digits than its factorization.

331082420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120979 (or 120977 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 331082420 is about 18195.6703641278. The cubic root of 331082420 is about 691.7970519829.

The spelling of 331082420 in words is "three hundred thirty-one million, eighty-two thousand, four hundred twenty".