404422224 has 80 divisors (see below), whose sum is σ = 1089519552. Its totient is φ = 129153024.

The previous prime is 404422217. The next prime is 404422259. The reversal of 404422224 is 422224404.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 404422194 and 404422203.

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, 107544 + ... + 111240.

Almost surely, 2^404422224 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 404422224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (544759776).

404422224 is an abundant number, since it is smaller than the sum of its proper divisors (685097328).

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

404422224 is a wasteful number, since it uses less digits than its factorization.

404422224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3804 (or 3798 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 404422224 is about 20110.2517139891. The cubic root of 404422224 is about 739.5116232165.

Adding to 404422224 its reverse (422224404), we get a palindrome (826646628).

The spelling of 404422224 in words is "four hundred four million, four hundred twenty-two thousand, two hundred twenty-four".