22008408 has 64 divisors (see below), whose sum is σ = 57024000. Its totient is φ = 7074432.

The previous prime is 22008407. The next prime is 22008443. The reversal of 22008408 is 80480022.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22008407) 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, 122863 + ... + 123041.

It is an arithmetic number, because the mean of its divisors is an integer number (891000).

Almost surely, 2^22008408 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 22008408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28512000).

22008408 is an abundant number, since it is smaller than the sum of its proper divisors (35015592).

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

22008408 is a wasteful number, since it uses less digits than its factorization.

22008408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 22008408 is about 4691.3119700144. The cubic root of 22008408 is about 280.2396248019.

The spelling of 22008408 in words is "twenty-two million, eight thousand, four hundred eight".