404003531112420 has 96 divisors (see below), whose sum is σ = 1131477113733120. Its totient is φ = 107708828077440.

The previous prime is 404003531112371. The next prime is 404003531112427. The reversal of 404003531112420 is 24211135300404.

It is a super-2 number, since 2×404003531112420² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (404003531112427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4798612525 + ... + 4798696715.

It is an arithmetic number, because the mean of its divisors is an integer number (11786219934720).

Almost surely, 2^{404003531112420} is an apocalyptic number.

It is an amenable number.

404003531112420 is an abundant number, since it is smaller than the sum of its proper divisors (727473582620700).

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

404003531112420 is a wasteful number, since it uses less digits than its factorization.

404003531112420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102145 (or 102143 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 404003531112420 its reverse (24211135300404), we get a palindrome (428214666412824).

The spelling of 404003531112420 in words is "four hundred four trillion, three billion, five hundred thirty-one million, one hundred twelve thousand, four hundred twenty".