22016864 has 12 divisors (see below), whose sum is σ = 43345764. Its totient is φ = 11008416.

The previous prime is 22016849. The next prime is 22016867. The reversal of 22016864 is 46861022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22016867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343982 + ... + 344045.

It is an arithmetic number, because the mean of its divisors is an integer number (3612147).

Almost surely, 2^22016864 is an apocalyptic number.

It is an amenable number.

22016864 is a deficient number, since it is larger than the sum of its proper divisors (21328900).

22016864 is an equidigital number, since it uses as much as digits as its factorization.

22016864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688037 (or 688029 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 22016864 is about 4692.2131238894. The cubic root of 22016864 is about 280.2755111298.

Adding to 22016864 its reverse (46861022), we get a palindrome (68877886).

The spelling of 22016864 in words is "twenty-two million, sixteen thousand, eight hundred sixty-four".