22899228 has 48 divisors (see below), whose sum is σ = 58590336. Its totient is φ = 6903360.

The previous prime is 22899223. The next prime is 22899259. The reversal of 22899228 is 82299822.

It is a self number, because there is not a number n which added to its sum of digits gives 22899228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22899223) 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 15 ways as a sum of consecutive naturals, for example, 37050 + ... + 37662.

It is an arithmetic number, because the mean of its divisors is an integer number (1220632).

Almost surely, 2^22899228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22899228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29295168).

22899228 is an abundant number, since it is smaller than the sum of its proper divisors (35691108).

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

22899228 is a wasteful number, since it uses less digits than its factorization.

22899228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914 (or 912 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 22899228 is about 4785.3137828151. The cubic root of 22899228 is about 283.9707534519.

The spelling of 22899228 in words is "twenty-two million, eight hundred ninety-nine thousand, two hundred twenty-eight".