404204032 has 40 divisors (see below), whose sum is σ = 819742176. Its totient is φ = 199068672.

The previous prime is 404204011. The next prime is 404204039. The reversal of 404204032 is 230402404.

It is not an unprimeable number, because it can be changed into a prime (404204039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28413 + ... + 40195.

Almost surely, 2^404204032 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 404204032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (409871088).

404204032 is an abundant number, since it is smaller than the sum of its proper divisors (415538144).

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

404204032 is an equidigital number, since it uses as much as digits as its factorization.

404204032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11868 (or 11852 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 404204032 is about 20104.8260872856. The cubic root of 404204032 is about 739.3786066667.

Adding to 404204032 its reverse (230402404), we get a palindrome (634606436).

The spelling of 404204032 in words is "four hundred four million, two hundred four thousand, thirty-two".