404442222 has 8 divisors (see below), whose sum is σ = 808884456. Its totient is φ = 134814072.

The previous prime is 404442187. The next prime is 404442229. The reversal of 404442222 is 222244404.

It is a sphenic number, since it is the product of 3 distinct primes.

404442222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 404442192 and 404442201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404442229) 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, 33703513 + ... + 33703524.

It is an arithmetic number, because the mean of its divisors is an integer number (101110557).

Almost surely, 2^404442222 is an apocalyptic number.

404442222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

404442222 is a wasteful number, since it uses less digits than its factorization.

404442222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67407042.

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

The square root of 404442222 is about 20110.7489169349. The cubic root of 404442222 is about 739.5238122184.

Adding to 404442222 its reverse (222244404), we get a palindrome (626686626).

The spelling of 404442222 in words is "four hundred four million, four hundred forty-two thousand, two hundred twenty-two".