22500234 has 32 divisors (see below), whose sum is σ = 51617280. Its totient is φ = 7257600.

The previous prime is 22500229. The next prime is 22500239. The reversal of 22500234 is 43200522.

It is an interprime number because it is at equal distance from previous prime (22500229) and next prime (22500239).

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 (22500239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5047 + ... + 8394.

It is an arithmetic number, because the mean of its divisors is an integer number (1613040).

Almost surely, 2^22500234 is an apocalyptic number.

22500234 is an abundant number, since it is smaller than the sum of its proper divisors (29117046).

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

22500234 is a wasteful number, since it uses less digits than its factorization.

22500234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13483 (or 13477 counting only the distinct ones).

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

The square root of 22500234 is about 4743.4411559542. The cubic root of 22500234 is about 282.3117873384.

Adding to 22500234 its reverse (43200522), we get a palindrome (65700756).

The spelling of 22500234 in words is "twenty-two million, five hundred thousand, two hundred thirty-four".