22228408 has 16 divisors (see below), whose sum is σ = 41956560. Its totient is φ = 11040000.

The previous prime is 22228403. The next prime is 22228421. The reversal of 22228408 is 80482222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22228403) 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 3 ways as a sum of consecutive naturals, for example, 7993 + ... + 10408.

It is an arithmetic number, because the mean of its divisors is an integer number (2622285).

Almost surely, 2^22228408 is an apocalyptic number.

It is an amenable number.

22228408 is a deficient number, since it is larger than the sum of its proper divisors (19728152).

22228408 is a wasteful number, since it uses less digits than its factorization.

22228408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18558 (or 18554 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 22228408 is about 4714.7012630707. The cubic root of 22228408 is about 281.1703057823.

It can be divided in two parts, 222 and 28408, that multiplied together give a triangular number (6306576 = T₃₅₅₁).

The spelling of 22228408 in words is "twenty-two million, two hundred twenty-eight thousand, four hundred eight".