22389090 has 16 divisors (see below), whose sum is σ = 53733888. Its totient is φ = 5970416.

The previous prime is 22389083. The next prime is 22389113. The reversal of 22389090 is 9098322.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 373122 + ... + 373181.

It is an arithmetic number, because the mean of its divisors is an integer number (3358368).

Almost surely, 2^22389090 is an apocalyptic number.

22389090 is an abundant number, since it is smaller than the sum of its proper divisors (31344798).

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

22389090 is a wasteful number, since it uses less digits than its factorization.

22389090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746313.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 22389090 is about 4731.7111069887. The cubic root of 22389090 is about 281.8461763570.

The spelling of 22389090 in words is "twenty-two million, three hundred eighty-nine thousand, ninety".