22412444 has 6 divisors (see below), whose sum is σ = 39221784. Its totient is φ = 11206220.

The previous prime is 22412393. The next prime is 22412461. The reversal of 22412444 is 44421422.

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 as a sum of consecutive naturals, namely, 2801552 + ... + 2801559.

It is an arithmetic number, because the mean of its divisors is an integer number (6536964).

Almost surely, 2^22412444 is an apocalyptic number.

It is an amenable number.

22412444 is a deficient number, since it is larger than the sum of its proper divisors (16809340).

22412444 is a wasteful number, since it uses less digits than its factorization.

22412444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5603115 (or 5603113 counting only the distinct ones).

The product of its digits is 2048, while the sum is 23.

The square root of 22412444 is about 4734.1782813916. The cubic root of 22412444 is about 281.9441399677.

Adding to 22412444 its reverse (44421422), we get a palindrome (66833866).

The spelling of 22412444 in words is "twenty-two million, four hundred twelve thousand, four hundred forty-four".