22275798 has 16 divisors (see below), whose sum is σ = 44852400. Its totient is φ = 7375136.

The previous prime is 22275793. The next prime is 22275817. The reversal of 22275798 is 89757222.

It is a happy number.

It is a super-2 number, since 2×22275798² = 992422353073608, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22275793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11565 + ... + 13352.

It is an arithmetic number, because the mean of its divisors is an integer number (2803275).

Almost surely, 2^22275798 is an apocalyptic number.

22275798 is an abundant number, since it is smaller than the sum of its proper divisors (22576602).

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

22275798 is a wasteful number, since it uses less digits than its factorization.

22275798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25071.

The product of its digits is 141120, while the sum is 42.

The square root of 22275798 is about 4719.7243563581. The cubic root of 22275798 is about 281.3699782434.

The spelling of 22275798 in words is "twenty-two million, two hundred seventy-five thousand, seven hundred ninety-eight".