22022308 has 48 divisors (see below), whose sum is σ = 48513024. Its totient is φ = 8497440.

The previous prime is 22022303. The next prime is 22022309. The reversal of 22022308 is 80322022.

It is not an unprimeable number, because it can be changed into a prime (22022303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38835 + ... + 39397.

It is an arithmetic number, because the mean of its divisors is an integer number (1010688).

Almost surely, 2^22022308 is an apocalyptic number.

22022308 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22022308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24256512).

22022308 is an abundant number, since it is smaller than the sum of its proper divisors (26490716).

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

22022308 is a wasteful number, since it uses less digits than its factorization.

22022308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 22022308 is about 4692.7931980858. The cubic root of 22022308 is about 280.2986100013.

The spelling of 22022308 in words is "twenty-two million, twenty-two thousand, three hundred eight".