22044004 has 6 divisors (see below), whose sum is σ = 38577014. Its totient is φ = 11022000.

The previous prime is 22043999. The next prime is 22044013. The reversal of 22044004 is 40044022.

It can be written as a sum of positive squares in only one way, i.e., 11546404 + 10497600 = 3398^2 + 3240^2 .

It is a super-2 number, since 2×22044004² = 971876224704032, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2755497 + ... + 2755504.

Almost surely, 2^22044004 is an apocalyptic number.

It is an amenable number.

22044004 is a deficient number, since it is larger than the sum of its proper divisors (16533010).

22044004 is a wasteful number, since it uses less digits than its factorization.

22044004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5511005 (or 5511003 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 22044004 is about 4695.1042586933. The cubic root of 22044004 is about 280.3906282501.

Adding to 22044004 its reverse (40044022), we get a palindrome (62088026).

The spelling of 22044004 in words is "twenty-two million, forty-four thousand, four".