23222500 has 60 divisors (see below), whose sum is σ = 58081408. Its totient is φ = 7956000.

The previous prime is 23222497. The next prime is 23222513. The reversal of 23222500 is 522232.

It is a super-3 number, since 3×23222500³ (a number of 23 digits) contains 333 as substring.

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 19 ways as a sum of consecutive naturals, for example, 16837 + ... + 18163.

Almost surely, 2^23222500 is an apocalyptic number.

23222500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23222500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29040704).

23222500 is an abundant number, since it is smaller than the sum of its proper divisors (34858908).

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

23222500 is a wasteful number, since it uses less digits than its factorization.

23222500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358 (or 1341 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 23222500 is about 4818.9729196168. The cubic root of 23222500 is about 285.3008007037.

Adding to 23222500 its reverse (522232), we get a palindrome (23744732).

The spelling of 23222500 in words is "twenty-three million, two hundred twenty-two thousand, five hundred".