22087668 has 24 divisors (see below), whose sum is σ = 52931872. Its totient is φ = 7163424.

The previous prime is 22087649. The next prime is 22087679. The reversal of 22087668 is 86678022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24430 + ... + 25317.

Almost surely, 2^22087668 is an apocalyptic number.

It is an amenable number.

22087668 is an abundant number, since it is smaller than the sum of its proper divisors (30844204).

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

22087668 is a wasteful number, since it uses less digits than its factorization.

22087668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49791 (or 49789 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 22087668 is about 4699.7519083458. The cubic root of 22087668 is about 280.5756355018.

The spelling of 22087668 in words is "twenty-two million, eighty-seven thousand, six hundred sixty-eight".