22706866 has 64 divisors (see below), whose sum is σ = 45722880. Its totient is φ = 8202240.

The previous prime is 22706857. The next prime is 22706897. The reversal of 22706866 is 66860722.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126765 + ... + 126943.

It is an arithmetic number, because the mean of its divisors is an integer number (714420).

Almost surely, 2^22706866 is an apocalyptic number.

22706866 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22706866 is an abundant number, since it is smaller than the sum of its proper divisors (23016014).

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

22706866 is a wasteful number, since it uses less digits than its factorization.

22706866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 22706866 is about 4765.1721899633. The cubic root of 22706866 is about 283.1733632927.

The spelling of 22706866 in words is "twenty-two million, seven hundred six thousand, eight hundred sixty-six".