28222295 has 12 divisors (see below), whose sum is σ = 35977944. Its totient is φ = 21248640.

The previous prime is 28222291. The next prime is 28222297. The reversal of 28222295 is 59222282.

It is a happy number.

It is not a de Polignac number, because 28222295 - 2² = 28222291 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28222291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8321 + ... + 11210.

It is an arithmetic number, because the mean of its divisors is an integer number (2998162).

Almost surely, 2^28222295 is an apocalyptic number.

28222295 is a deficient number, since it is larger than the sum of its proper divisors (7755649).

28222295 is a wasteful number, since it uses less digits than its factorization.

28222295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19570 (or 19553 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 28222295 is about 5312.4659998912. The cubic root of 28222295 is about 304.4603734194.

The spelling of 28222295 in words is "twenty-eight million, two hundred twenty-two thousand, two hundred ninety-five".