22159856 has 20 divisors (see below), whose sum is σ = 44802192. Its totient is φ = 10598016.

The previous prime is 22159831. The next prime is 22159861. The reversal of 22159856 is 65895122.

It is a congruent number.

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, 29741 + ... + 30476.

Almost surely, 2^22159856 is an apocalyptic number.

It is an amenable number.

22159856 is an abundant number, since it is smaller than the sum of its proper divisors (22642336).

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

22159856 is a wasteful number, since it uses less digits than its factorization.

22159856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60248 (or 60242 counting only the distinct ones).

The product of its digits is 43200, while the sum is 38.

The square root of 22159856 is about 4707.4256234167. The cubic root of 22159856 is about 280.8809667950.

The spelling of 22159856 in words is "twenty-two million, one hundred fifty-nine thousand, eight hundred fifty-six".