22243408 has 40 divisors (see below), whose sum is σ = 48032640. Its totient is φ = 9891840.

The previous prime is 22243393. The next prime is 22243423. The reversal of 22243408 is 80434222.

It is an interprime number because it is at equal distance from previous prime (22243393) and next prime (22243423).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6928 + ... + 9616.

It is an arithmetic number, because the mean of its divisors is an integer number (1200816).

Almost surely, 2^22243408 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 22243408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24016320).

22243408 is an abundant number, since it is smaller than the sum of its proper divisors (25789232).

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

22243408 is a wasteful number, since it uses less digits than its factorization.

22243408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755 (or 2749 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 22243408 is about 4716.2917636635. The cubic root of 22243408 is about 281.2335372751.

The spelling of 22243408 in words is "twenty-two million, two hundred forty-three thousand, four hundred eight".