331404036 has 24 divisors (see below), whose sum is σ = 780373440. Its totient is φ = 109454112.

The previous prime is 331404019. The next prime is 331404109. The reversal of 331404036 is 630404133.

It is a junction number, because it is equal to n+sod(n) for n = 331403997 and 331404015.

It is an unprimeable number.

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, 125376 + ... + 127991.

It is an arithmetic number, because the mean of its divisors is an integer number (32515560).

Almost surely, 2^331404036 is an apocalyptic number.

It is an amenable number.

331404036 is an abundant number, since it is smaller than the sum of its proper divisors (448969404).

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

331404036 is a wasteful number, since it uses less digits than its factorization.

331404036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253483 (or 253481 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 331404036 is about 18204.5059257317. The cubic root of 331404036 is about 692.0209851411.

Adding to 331404036 its reverse (630404133), we get a palindrome (961808169).

The spelling of 331404036 in words is "three hundred thirty-one million, four hundred four thousand, thirty-six".