22661230 has 16 divisors (see below), whose sum is σ = 40963824. Its totient is φ = 9025920.

The previous prime is 22661213. The next prime is 22661231. The reversal of 22661230 is 3216622.

It is a happy number.

It is a super-2 number, since 2×22661230² = 1027062690225800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22661231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2292 + ... + 7111.

It is an arithmetic number, because the mean of its divisors is an integer number (2560239).

Almost surely, 2^22661230 is an apocalyptic number.

22661230 is a deficient number, since it is larger than the sum of its proper divisors (18302594).

22661230 is a wasteful number, since it uses less digits than its factorization.

22661230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9651.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 22661230 is about 4760.3812872500. The cubic root of 22661230 is about 282.9835298634.

Adding to 22661230 its reverse (3216622), we get a palindrome (25877852).

The spelling of 22661230 in words is "twenty-two million, six hundred sixty-one thousand, two hundred thirty".