22740608 has 64 divisors (see below), whose sum is σ = 51114240. Its totient is φ = 9984000.

The previous prime is 22740581. The next prime is 22740623. The reversal of 22740608 is 80604722.

It is a tau number, because it is divible by the number of its divisors (64).

It is a zygodrome in base 4.

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, 43388 + ... + 43908.

It is an arithmetic number, because the mean of its divisors is an integer number (798660).

Almost surely, 2^22740608 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 22740608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25557120).

22740608 is an abundant number, since it is smaller than the sum of its proper divisors (28373632).

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

22740608 is a wasteful number, since it uses less digits than its factorization.

22740608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577 (or 565 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 22740608 is about 4768.7113563310. The cubic root of 22740608 is about 283.3135574048.

The spelling of 22740608 in words is "twenty-two million, seven hundred forty thousand, six hundred eight".