22780868 has 12 divisors (see below), whose sum is σ = 43490832. Its totient is φ = 10354920.

The previous prime is 22780859. The next prime is 22780873. The reversal of 22780868 is 86808722.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258830 + ... + 258917.

It is an arithmetic number, because the mean of its divisors is an integer number (3624236).

Almost surely, 2^22780868 is an apocalyptic number.

It is an amenable number.

22780868 is a deficient number, since it is larger than the sum of its proper divisors (20709964).

22780868 is a wasteful number, since it uses less digits than its factorization.

22780868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517762 (or 517760 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 22780868 is about 4772.9307558355. The cubic root of 22780868 is about 283.4806517242.

The spelling of 22780868 in words is "twenty-two million, seven hundred eighty thousand, eight hundred sixty-eight".