331423900 has 18 divisors (see below), whose sum is σ = 719190080. Its totient is φ = 132569520.

The previous prime is 331423889. The next prime is 331423901. The reversal of 331423900 is 9324133.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331423901) 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 5 ways as a sum of consecutive naturals, for example, 1657020 + ... + 1657219.

Almost surely, 2^331423900 is an apocalyptic number.

It is an amenable number.

331423900 is an abundant number, since it is smaller than the sum of its proper divisors (387766180).

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

331423900 is a wasteful number, since it uses less digits than its factorization.

331423900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314253 (or 3314246 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 331423900 is about 18205.0514967687. The cubic root of 331423900 is about 692.0348111950.

The spelling of 331423900 in words is "three hundred thirty-one million, four hundred twenty-three thousand, nine hundred".