22532238 has 12 divisors (see below), whose sum is σ = 48819888. Its totient is φ = 7510740.

The previous prime is 22532207. The next prime is 22532239. The reversal of 22532238 is 83223522.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22532239) 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 5 ways as a sum of consecutive naturals, for example, 625878 + ... + 625913.

It is an arithmetic number, because the mean of its divisors is an integer number (4068324).

Almost surely, 2^22532238 is an apocalyptic number.

22532238 is an abundant number, since it is smaller than the sum of its proper divisors (26287650).

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

22532238 is a wasteful number, since it uses less digits than its factorization.

22532238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251799 (or 1251796 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 22532238 is about 4746.8134574681. The cubic root of 22532238 is about 282.4455759621.

The spelling of 22532238 in words is "twenty-two million, five hundred thirty-two thousand, two hundred thirty-eight".