22443004 has 12 divisors (see below), whose sum is σ = 39403728. Its totient is φ = 11184800.

The previous prime is 22442969. The next prime is 22443007. The reversal of 22443004 is 40034422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22443007) 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, 7777 + ... + 10264.

It is an arithmetic number, because the mean of its divisors is an integer number (3283644).

Almost surely, 2^22443004 is an apocalyptic number.

It is an amenable number.

22443004 is a deficient number, since it is larger than the sum of its proper divisors (16960724).

22443004 is a wasteful number, since it uses less digits than its factorization.

22443004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18356 (or 18354 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 22443004 is about 4737.4047747686. The cubic root of 22443004 is about 282.0722280324.

Adding to 22443004 its reverse (40034422), we get a palindrome (62477426).

The spelling of 22443004 in words is "twenty-two million, four hundred forty-three thousand, four".