331401204 has 36 divisors (see below), whose sum is σ = 874132896. Its totient is φ = 105663888.

The previous prime is 331401167. The next prime is 331401221. The reversal of 331401204 is 402104133.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199294 + ... + 200949.

Almost surely, 2^331401204 is an apocalyptic number.

It is an amenable number.

331401204 is an abundant number, since it is smaller than the sum of its proper divisors (542731692).

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

331401204 is a wasteful number, since it uses less digits than its factorization.

331401204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400276 (or 400271 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 331401204 is about 18204.4281426251. The cubic root of 331401204 is about 692.0190139229.

Adding to 331401204 its reverse (402104133), we get a palindrome (733505337).

The spelling of 331401204 in words is "three hundred thirty-one million, four hundred one thousand, two hundred four".