404015125220 has 24 divisors (see below), whose sum is σ = 969636300864. Its totient is φ = 138519471456.

The previous prime is 404015125219. The next prime is 404015125229. The reversal of 404015125220 is 22521510404.

It is a self number, because there is not a number n which added to its sum of digits gives 404015125220.

It is not an unprimeable number, because it can be changed into a prime (404015125229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1442911022 + ... + 1442911301.

It is an arithmetic number, because the mean of its divisors is an integer number (40401512536).

Almost surely, 2^404015125220 is an apocalyptic number.

It is an amenable number.

404015125220 is an abundant number, since it is smaller than the sum of its proper divisors (565621175644).

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

404015125220 is a wasteful number, since it uses less digits than its factorization.

404015125220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885822339 (or 2885822337 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 404015125220 its reverse (22521510404), we get a palindrome (426536635624).

The spelling of 404015125220 in words is "four hundred four billion, fifteen million, one hundred twenty-five thousand, two hundred twenty".