22091230 has 16 divisors (see below), whose sum is σ = 45444960. Its totient is φ = 7574112.

The previous prime is 22091219. The next prime is 22091233. The reversal of 22091230 is 3219022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22091198 and 22091207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22091233) 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, 157725 + ... + 157864.

It is an arithmetic number, because the mean of its divisors is an integer number (2840310).

Almost surely, 2^22091230 is an apocalyptic number.

22091230 is an abundant number, since it is smaller than the sum of its proper divisors (23353730).

22091230 is a wasteful number, since it uses less digits than its factorization.

22091230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315603.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 22091230 is about 4700.1308492424. The cubic root of 22091230 is about 280.5907171708.

The spelling of 22091230 in words is "twenty-two million, ninety-one thousand, two hundred thirty".