22280608 has 48 divisors (see below), whose sum is σ = 53089344. Its totient is φ = 8985600.

The previous prime is 22280569. The next prime is 22280627. The reversal of 22280608 is 80608222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 883 + ... + 6733.

It is an arithmetic number, because the mean of its divisors is an integer number (1106028).

Almost surely, 2^22280608 is an apocalyptic number.

22280608 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 22280608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26544672).

22280608 is an abundant number, since it is smaller than the sum of its proper divisors (30808736).

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

22280608 is a wasteful number, since it uses less digits than its factorization.

22280608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5885 (or 5877 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 22280608 is about 4720.2338925100. The cubic root of 22280608 is about 281.3902288040.

The spelling of 22280608 in words is "twenty-two million, two hundred eighty thousand, six hundred eight".