404022204 has 36 divisors (see below), whose sum is σ = 1081355184. Its totient is φ = 126751872.

The previous prime is 404022197. The next prime is 404022211. The reversal of 404022204 is 402220404.

404022204 is a `hidden beast` number, since 40 + 402 + 220 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (404022197) and next prime (404022211).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 329472 + ... + 330695.

It is an arithmetic number, because the mean of its divisors is an integer number (30037644).

Almost surely, 2^404022204 is an apocalyptic number.

It is an amenable number.

404022204 is an abundant number, since it is smaller than the sum of its proper divisors (677332980).

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

404022204 is a wasteful number, since it uses less digits than its factorization.

404022204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660194 (or 660189 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 404022204 is about 20100.3035797970. The cubic root of 404022204 is about 739.2677221574.

Adding to 404022204 its reverse (402220404), we get a palindrome (806242608).

It can be divided in two parts, 4040 and 22204, that added together give a square (26244 = 162²).

The spelling of 404022204 in words is "four hundred four million, twenty-two thousand, two hundred four".