331420044 has 24 divisors (see below), whose sum is σ = 779220288. Its totient is φ = 109629520.

The previous prime is 331420043. The next prime is 331420057. The reversal of 331420044 is 440024133.

It is a self number, because there is not a number n which added to its sum of digits gives 331420044.

It is not an unprimeable number, because it can be changed into a prime (331420043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103842 + ... + 106985.

It is an arithmetic number, because the mean of its divisors is an integer number (32467512).

Almost surely, 2^331420044 is an apocalyptic number.

It is an amenable number.

331420044 is an abundant number, since it is smaller than the sum of its proper divisors (447800244).

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

331420044 is a wasteful number, since it uses less digits than its factorization.

331420044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210965 (or 210963 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 331420044 is about 18204.9455917891. The cubic root of 331420044 is about 692.0321273244.

Adding to 331420044 its reverse (440024133), we get a palindrome (771444177).

The spelling of 331420044 in words is "three hundred thirty-one million, four hundred twenty thousand, forty-four".