22866978 has 8 divisors (see below), whose sum is σ = 45733968. Its totient is φ = 7622324.

The previous prime is 22866973. The next prime is 22867003. The reversal of 22866978 is 87966822.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

22866978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (22866973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1905576 + ... + 1905587.

It is an arithmetic number, because the mean of its divisors is an integer number (5716746).

Almost surely, 2^22866978 is an apocalyptic number.

22866978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22866978 is a wasteful number, since it uses less digits than its factorization.

22866978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3811168.

The product of its digits is 580608, while the sum is 48.

The square root of 22866978 is about 4781.9429105752. The cubic root of 22866978 is about 283.8373812789.

The spelling of 22866978 in words is "twenty-two million, eight hundred sixty-six thousand, nine hundred seventy-eight".