23222250 has 48 divisors (see below), whose sum is σ = 62799048. Its totient is φ = 6192000.

The previous prime is 23222233. The next prime is 23222257. The reversal of 23222250 is 5222232.

It can be written as a sum of positive squares in 4 ways, for example, as 7469289 + 15752961 = 2733^2 + 3969^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23222257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2911 + ... + 7410.

Almost surely, 2^23222250 is an apocalyptic number.

23222250 is an abundant number, since it is smaller than the sum of its proper divisors (39576798).

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

23222250 is a wasteful number, since it uses less digits than its factorization.

23222250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10344 (or 10331 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 23222250 is about 4818.9469804097. The cubic root of 23222250 is about 285.2997769056.

Subtracting from 23222250 its sum of digits (18), we obtain a palindrome (23222232).

Adding to 23222250 its reverse (5222232), we get a palindrome (28444482).

The spelling of 23222250 in words is "twenty-three million, two hundred twenty-two thousand, two hundred fifty".