22028324856 has 64 divisors (see below), whose sum is σ = 57256174080. Its totient is φ = 7056741120.

The previous prime is 22028324839. The next prime is 22028324867. The reversal of 22028324856 is 65842382022.

It is a happy number.

It is a super-2 number, since 2×22028324856² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101136 + ... + 232991.

It is an arithmetic number, because the mean of its divisors is an integer number (894627720).

Almost surely, 2^22028324856 is an apocalyptic number.

It is an amenable number.

22028324856 is an abundant number, since it is smaller than the sum of its proper divisors (35227849224).

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

22028324856 is a wasteful number, since it uses less digits than its factorization.

22028324856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334244 (or 334240 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 22028324856 in words is "twenty-two billion, twenty-eight million, three hundred twenty-four thousand, eight hundred fifty-six".