22285790 has 16 divisors (see below), whose sum is σ = 40409712. Its totient is φ = 8848704.

The previous prime is 22285789. The next prime is 22285799. The reversal of 22285790 is 9758222.

It is a self number, because there is not a number n which added to its sum of digits gives 22285790.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22285799) 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, 6764 + ... + 9503.

It is an arithmetic number, because the mean of its divisors is an integer number (2525607).

Almost surely, 2^22285790 is an apocalyptic number.

22285790 is a deficient number, since it is larger than the sum of its proper divisors (18123922).

22285790 is a wasteful number, since it uses less digits than its factorization.

22285790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16411.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 22285790 is about 4720.7827740747. The cubic root of 22285790 is about 281.4120422592.

The spelling of 22285790 in words is "twenty-two million, two hundred eighty-five thousand, seven hundred ninety".