22067856 has 80 divisors (see below), whose sum is σ = 66126720. Its totient is φ = 7032960.

The previous prime is 22067849. The next prime is 22067891. The reversal of 22067856 is 65876022.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 22067856.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8826 + ... + 11046.

It is an arithmetic number, because the mean of its divisors is an integer number (826584).

Almost surely, 2^22067856 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 22067856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33063360).

22067856 is an abundant number, since it is smaller than the sum of its proper divisors (44058864).

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

22067856 is a wasteful number, since it uses less digits than its factorization.

22067856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261 (or 2249 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 22067856 is about 4697.6436646472. The cubic root of 22067856 is about 280.4917209945.

The spelling of 22067856 in words is "twenty-two million, sixty-seven thousand, eight hundred fifty-six".