22007808 has 104 divisors (see below), whose sum is σ = 65528000. Its totient is φ = 7299072.

The previous prime is 22007807. The next prime is 22007827. The reversal of 22007808 is 80870022.

It is a super-2 number, since 2×22007808² = 968687225929728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22007807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110493 + ... + 110691.

Almost surely, 2^22007808 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 22007808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32764000).

22007808 is an abundant number, since it is smaller than the sum of its proper divisors (43520192).

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

22007808 is an equidigital number, since it uses as much as digits as its factorization.

22007808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 22007808 is about 4691.2480215823. The cubic root of 22007808 is about 280.2370781191.

The spelling of 22007808 in words is "twenty-two million, seven thousand, eight hundred eight".