22273604 has 12 divisors (see below), whose sum is σ = 41271804. Its totient is φ = 10481664.

The previous prime is 22273579. The next prime is 22273607. The reversal of 22273604 is 40637222.

It can be written as a sum of positive squares in 2 ways, for example, as 6512704 + 15760900 = 2552^2 + 3970^2 .

It is a super-2 number, since 2×22273604² = 992226870297632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22273607) 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, 163709 + ... + 163844.

It is an arithmetic number, because the mean of its divisors is an integer number (3439317).

Almost surely, 2^22273604 is an apocalyptic number.

It is an amenable number.

22273604 is a deficient number, since it is larger than the sum of its proper divisors (18998200).

22273604 is a wasteful number, since it uses less digits than its factorization.

22273604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327574 (or 327572 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 22273604 is about 4719.4919218068. The cubic root of 22273604 is about 281.3607403252.

The spelling of 22273604 in words is "twenty-two million, two hundred seventy-three thousand, six hundred four".