22045230 has 32 divisors (see below), whose sum is σ = 58788000. Its totient is φ = 5878656.

The previous prime is 22045207. The next prime is 22045237. The reversal of 22045230 is 3254022.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22045237) 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, 40555 + ... + 41094.

It is an arithmetic number, because the mean of its divisors is an integer number (1837125).

Almost surely, 2^22045230 is an apocalyptic number.

22045230 is an abundant number, since it is smaller than the sum of its proper divisors (36742770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22045230 is a wasteful number, since it uses less digits than its factorization.

22045230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81665 (or 81659 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22045230 is about 4695.2348184090. The cubic root of 22045230 is about 280.3958262250.

Adding to 22045230 its reverse (3254022), we get a palindrome (25299252).

The spelling of 22045230 in words is "twenty-two million, forty-five thousand, two hundred thirty".