22243033890 has 512 divisors, whose sum is σ = 77894369280. Its totient is φ = 4379443200.

The previous prime is 22243033859. The next prime is 22243033921. The reversal of 22243033890 is 9833034222.

It is an interprime number because it is at equal distance from previous prime (22243033859) and next prime (22243033921).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 86548642 + ... + 86548898.

It is an arithmetic number, because the mean of its divisors is an integer number (152137440).

Almost surely, 2^22243033890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22243033890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38947184640).

22243033890 is an abundant number, since it is smaller than the sum of its proper divisors (55651335390).

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

22243033890 is a wasteful number, since it uses less digits than its factorization.

22243033890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 22243033890 in words is "twenty-two billion, two hundred forty-three million, thirty-three thousand, eight hundred ninety".