22006604 has 12 divisors (see below), whose sum is σ = 39143328. Its totient is φ = 10822800.

The previous prime is 22006597. The next prime is 22006613. The reversal of 22006604 is 40660022.

It is a super-2 number, since 2×22006604² = 968581239225632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44852 + ... + 45339.

It is an arithmetic number, because the mean of its divisors is an integer number (3261944).

Almost surely, 2^22006604 is an apocalyptic number.

It is an amenable number.

22006604 is a deficient number, since it is larger than the sum of its proper divisors (17136724).

22006604 is a wasteful number, since it uses less digits than its factorization.

22006604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90256 (or 90254 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 22006604 is about 4691.1196957656. The cubic root of 22006604 is about 280.2319676359.

Adding to 22006604 its reverse (40660022), we get a palindrome (62666626).

The spelling of 22006604 in words is "twenty-two million, six thousand, six hundred four".