404536220 has 48 divisors (see below), whose sum is σ = 975542400. Its totient is φ = 139360320.

The previous prime is 404536219. The next prime is 404536261. The reversal of 404536220 is 22635404.

It is a self number, because there is not a number n which added to its sum of digits gives 404536220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44210 + ... + 52569.

It is an arithmetic number, because the mean of its divisors is an integer number (20323800).

Almost surely, 2^404536220 is an apocalyptic number.

It is an amenable number.

404536220 is an abundant number, since it is smaller than the sum of its proper divisors (571006180).

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

404536220 is a wasteful number, since it uses less digits than its factorization.

404536220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96818 (or 96816 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 404536220 is about 20113.0857901019. The cubic root of 404536220 is about 739.5810996551.

The spelling of 404536220 in words is "four hundred four million, five hundred thirty-six thousand, two hundred twenty".