22045930 has 16 divisors (see below), whose sum is σ = 39997440. Its totient is φ = 8748432.

The previous prime is 22045921. The next prime is 22045931. The reversal of 22045930 is 3954022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22045895 and 22045904.

It is not an unprimeable number, because it can be changed into a prime (22045931) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 7410 + ... + 9949.

It is an arithmetic number, because the mean of its divisors is an integer number (2499840).

Almost surely, 2^22045930 is an apocalyptic number.

22045930 is a deficient number, since it is larger than the sum of its proper divisors (17951510).

22045930 is a wasteful number, since it uses less digits than its factorization.

22045930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17493.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 22045930 is about 4695.3093614798. The cubic root of 22045930 is about 280.3987939872.

Adding to 22045930 its reverse (3954022), we get a palindrome (25999952).

The spelling of 22045930 in words is "twenty-two million, forty-five thousand, nine hundred thirty".