22018000308 has 12 divisors (see below), whose sum is σ = 51375334080. Its totient is φ = 7339333432.

The previous prime is 22018000307. The next prime is 22018000309. The reversal of 22018000308 is 80300081022.

It is an interprime number because it is at equal distance from previous prime (22018000307) and next prime (22018000309).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22018000307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 917416668 + ... + 917416691.

It is an arithmetic number, because the mean of its divisors is an integer number (4281277840).

Almost surely, 2^22018000308 is an apocalyptic number.

It is an amenable number.

22018000308 is an abundant number, since it is smaller than the sum of its proper divisors (29357333772).

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

22018000308 is a wasteful number, since it uses less digits than its factorization.

22018000308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834833366 (or 1834833364 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The spelling of 22018000308 in words is "twenty-two billion, eighteen million, three hundred eight", and thus it is an aban number.