404204052 has 24 divisors (see below), whose sum is σ = 1077877696. Its totient is φ = 115486848.

The previous prime is 404204039. The next prime is 404204111. The reversal of 404204052 is 250402404.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2405893 + ... + 2406060.

Almost surely, 2^404204052 is an apocalyptic number.

404204052 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

404204052 is an abundant number, since it is smaller than the sum of its proper divisors (673673644).

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

404204052 is a wasteful number, since it uses less digits than its factorization.

404204052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4811967 (or 4811965 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 404204052 is about 20104.8265846786. The cubic root of 404204052 is about 739.3786188615.

Adding to 404204052 its reverse (250402404), we get a palindrome (654606456).

The spelling of 404204052 in words is "four hundred four million, two hundred four thousand, fifty-two".