331132004 has 36 divisors (see below), whose sum is σ = 681078636. Its totient is φ = 140442624.

The previous prime is 331131953. The next prime is 331132033. The reversal of 331132004 is 400231133.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 243672100 + 87459904 = 15610^2 + 9352^2 .

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, 10304 + ... + 27720.

It is an arithmetic number, because the mean of its divisors is an integer number (18918851).

Almost surely, 2^331132004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331132004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340539318).

331132004 is an abundant number, since it is smaller than the sum of its proper divisors (349946632).

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

331132004 is a wasteful number, since it uses less digits than its factorization.

331132004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17532 (or 17523 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 331132004 is about 18197.0328350531. The cubic root of 331132004 is about 691.8315855318.

Adding to 331132004 its reverse (400231133), we get a palindrome (731363137).

The spelling of 331132004 in words is "three hundred thirty-one million, one hundred thirty-two thousand, four".