22213008 has 40 divisors (see below), whose sum is σ = 63760800. Its totient is φ = 7404192.

The previous prime is 22213007. The next prime is 22213049. The reversal of 22213008 is 80031222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22213007) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25278 + ... + 26141.

It is an arithmetic number, because the mean of its divisors is an integer number (1594020).

Almost surely, 2^22213008 is an apocalyptic number.

It is an amenable number.

22213008 is an abundant number, since it is smaller than the sum of its proper divisors (41547792).

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

22213008 is a wasteful number, since it uses less digits than its factorization.

22213008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51436 (or 51424 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 22213008 is about 4713.0677907282. The cubic root of 22213008 is about 281.1053585153.

The spelling of 22213008 in words is "twenty-two million, two hundred thirteen thousand, eight".