22030945 has 16 divisors (see below), whose sum is σ = 27025920. Its totient is φ = 17236800.

The previous prime is 22030927. The next prime is 22030949. The reversal of 22030945 is 54903022.

It is a happy number.

It is not a de Polignac number, because 22030945 - 2⁵ = 22030913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22030949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81160 + ... + 81430.

It is an arithmetic number, because the mean of its divisors is an integer number (1689120).

Almost surely, 2^22030945 is an apocalyptic number.

It is an amenable number.

22030945 is a deficient number, since it is larger than the sum of its proper divisors (4994975).

22030945 is a wasteful number, since it uses less digits than its factorization.

22030945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576.

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

The square root of 22030945 is about 4693.7133487251. The cubic root of 22030945 is about 280.3352489505.

Adding to 22030945 its reverse (54903022), we get a palindrome (76933967).

The spelling of 22030945 in words is "twenty-two million, thirty thousand, nine hundred forty-five".