422223444 has 36 divisors (see below), whose sum is σ = 1068511444. Its totient is φ = 140579712.

The previous prime is 422223437. The next prime is 422223457. The reversal of 422223444 is 444322224.

422223444 is a `hidden beast` number, since 422 + 2 + 234 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 207014544 + 215208900 = 14388^2 + 14670^2 .

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

It is a super-2 number, since 2×422223444² = 356545273326442272, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 27474 + ... + 39990.

Almost surely, 2^422223444 is an apocalyptic number.

It is an amenable number.

422223444 is an abundant number, since it is smaller than the sum of its proper divisors (646288000).

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

422223444 is a wasteful number, since it uses less digits than its factorization.

422223444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13464 (or 13459 counting only the distinct ones).

The product of its digits is 12288, while the sum is 27.

The square root of 422223444 is about 20548.0764063209. The cubic root of 422223444 is about 750.2064285111.

Adding to 422223444 its reverse (444322224), we get a palindrome (866545668).

The spelling of 422223444 in words is "four hundred twenty-two million, two hundred twenty-three thousand, four hundred forty-four".