404985588 has 96 divisors (see below), whose sum is σ = 1120761600. Its totient is φ = 113742720.

The previous prime is 404985557. The next prime is 404985599. The reversal of 404985588 is 885589404.

It is a self number, because there is not a number n which added to its sum of digits gives 404985588.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 250270 + ... + 251882.

It is an arithmetic number, because the mean of its divisors is an integer number (11674600).

Almost surely, 2^404985588 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404985588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560380800).

404985588 is an abundant number, since it is smaller than the sum of its proper divisors (715776012).

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

404985588 is a wasteful number, since it uses less digits than its factorization.

404985588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702 (or 1686 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 51.

The square root of 404985588 is about 20124.2537252938. The cubic root of 404985588 is about 739.8548461337.

The spelling of 404985588 in words is "four hundred four million, nine hundred eighty-five thousand, five hundred eighty-eight".