404204500 has 96 divisors (see below), whose sum is σ = 1028401920. Its totient is φ = 135907200.

The previous prime is 404204497. The next prime is 404204509. The reversal of 404204500 is 5402404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404204509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184411 + ... + 186589.

It is an arithmetic number, because the mean of its divisors is an integer number (10712520).

Almost surely, 2^404204500 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 404204500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514200960).

404204500 is an abundant number, since it is smaller than the sum of its proper divisors (624197420).

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

404204500 is a wasteful number, since it uses less digits than its factorization.

404204500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258 (or 2246 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 404204500 is about 20104.8377262787. The cubic root of 404204500 is about 739.3788920251.

Adding to 404204500 its reverse (5402404), we get a palindrome (409606904).

The spelling of 404204500 in words is "four hundred four million, two hundred four thousand, five hundred".