320012400404 has 24 divisors (see below), whose sum is σ = 589680221760. Its totient is φ = 151537585536.

The previous prime is 320012400343. The next prime is 320012400431. The reversal of 320012400404 is 404004210023.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409952 + ... + 898935.

It is an arithmetic number, because the mean of its divisors is an integer number (24570009240).

Almost surely, 2^320012400404 is an apocalyptic number.

It is an amenable number.

320012400404 is a deficient number, since it is larger than the sum of its proper divisors (269667821356).

320012400404 is a wasteful number, since it uses less digits than its factorization.

320012400404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312127 (or 1312125 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 320012400404 its reverse (404004210023), we get a palindrome (724016610427).

The spelling of 320012400404 in words is "three hundred twenty billion, twelve million, four hundred thousand, four hundred four".