404013431332 has 48 divisors (see below), whose sum is σ = 824659360000. Its totient is φ = 173118762432.

The previous prime is 404013431321. The next prime is 404013431347. The reversal of 404013431332 is 233134310404.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 404013431332.

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 15 ways as a sum of consecutive naturals, for example, 9141544 + ... + 9185632.

Almost surely, 2^404013431332 is an apocalyptic number.

It is an amenable number.

404013431332 is an abundant number, since it is smaller than the sum of its proper divisors (420645928668).

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

404013431332 is a wasteful number, since it uses less digits than its factorization.

404013431332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50793 (or 50777 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 404013431332 its reverse (233134310404), we get a palindrome (637147741736).

The spelling of 404013431332 in words is "four hundred four billion, thirteen million, four hundred thirty-one thousand, three hundred thirty-two".