22283250 has 128 divisors (see below), whose sum is σ = 63168768. Its totient is φ = 5184000.

The previous prime is 22283237. The next prime is 22283263. The reversal of 22283250 is 5238222.

It is an interprime number because it is at equal distance from previous prime (22283237) and next prime (22283263).

It is a self number, because there is not a number n which added to its sum of digits gives 22283250.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 305214 + ... + 305286.

It is an arithmetic number, because the mean of its divisors is an integer number (493506).

Almost surely, 2^22283250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22283250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31584384).

22283250 is an abundant number, since it is smaller than the sum of its proper divisors (40885518).

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

22283250 is a wasteful number, since it uses less digits than its factorization.

22283250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 22283250 is about 4720.5137432275. The cubic root of 22283250 is about 281.4013506370.

The spelling of 22283250 in words is "twenty-two million, two hundred eighty-three thousand, two hundred fifty".