22243490 has 16 divisors (see below), whose sum is σ = 42145920. Its totient is φ = 8429040.

The previous prime is 22243489. The next prime is 22243499. The reversal of 22243490 is 9434222.

It is not an unprimeable number, because it can be changed into a prime (22243499) 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, 58346 + ... + 58725.

It is an arithmetic number, because the mean of its divisors is an integer number (2634120).

Almost surely, 2^22243490 is an apocalyptic number.

22243490 is a deficient number, since it is larger than the sum of its proper divisors (19902430).

22243490 is a wasteful number, since it uses less digits than its factorization.

22243490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117097.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 22243490 is about 4716.3004569260. The cubic root of 22243490 is about 281.2338828624.

The spelling of 22243490 in words is "twenty-two million, two hundred forty-three thousand, four hundred ninety".