22000923 has 32 divisors (see below), whose sum is σ = 37900800. Its totient is φ = 12352608.

The previous prime is 22000921. The next prime is 22000933. The reversal of 22000923 is 32900022.

It is not a de Polignac number, because 22000923 - 2¹ = 22000921 is a prime.

It is a super-2 number, since 2×22000923² = 968081225703858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22000896 and 22000905.

It is not an unprimeable number, because it can be changed into a prime (22000921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10165 + ... + 12137.

It is an arithmetic number, because the mean of its divisors is an integer number (1184400).

Almost surely, 2^22000923 is an apocalyptic number.

22000923 is a deficient number, since it is larger than the sum of its proper divisors (15899877).

22000923 is a wasteful number, since it uses less digits than its factorization.

22000923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 22000923 is about 4690.5141509221. The cubic root of 22000923 is about 280.2078516203.

Adding to 22000923 its reverse (32900022), we get a palindrome (54900945).

The spelling of 22000923 in words is "twenty-two million, nine hundred twenty-three", and thus it is an aban number.