22225828 has 12 divisors (see below), whose sum is σ = 38939292. Its totient is φ = 11100320.

The previous prime is 22225807. The next prime is 22225849. The reversal of 22225828 is 82852222.

It is an interprime number because it is at equal distance from previous prime (22225807) and next prime (22225849).

It can be written as a sum of positive squares in 2 ways, for example, as 16990884 + 5234944 = 4122^2 + 2288^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22225828.

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 3 ways as a sum of consecutive naturals, for example, 1626 + ... + 6862.

It is an arithmetic number, because the mean of its divisors is an integer number (3244941).

Almost surely, 2^22225828 is an apocalyptic number.

It is an amenable number.

22225828 is a deficient number, since it is larger than the sum of its proper divisors (16713464).

22225828 is a wasteful number, since it uses less digits than its factorization.

22225828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6302 (or 6300 counting only the distinct ones).

The product of its digits is 10240, while the sum is 31.

The square root of 22225828 is about 4714.4276428852. The cubic root of 22225828 is about 281.1594270987.

The spelling of 22225828 in words is "twenty-two million, two hundred twenty-five thousand, eight hundred twenty-eight".