22423004 has 12 divisors (see below), whose sum is σ = 39458328. Its totient is φ = 11149200.

The previous prime is 22423001. The next prime is 22423019. The reversal of 22423004 is 40032422.

It is a super-2 number, since 2×22423004² = 1005582216768032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22423001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14762 + ... + 16209.

It is an arithmetic number, because the mean of its divisors is an integer number (3288194).

Almost surely, 2^22423004 is an apocalyptic number.

It is an amenable number.

22423004 is a deficient number, since it is larger than the sum of its proper divisors (17035324).

22423004 is a wasteful number, since it uses less digits than its factorization.

22423004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31156 (or 31154 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 22423004 is about 4735.2934439166. The cubic root of 22423004 is about 281.9884139230.

Adding to 22423004 its reverse (40032422), we get a palindrome (62455426).

The spelling of 22423004 in words is "twenty-two million, four hundred twenty-three thousand, four".