22132845 has 80 divisors (see below), whose sum is σ = 46789248. Its totient is φ = 9797760.

The previous prime is 22132811. The next prime is 22132871. The reversal of 22132845 is 54823122.

It is not a de Polignac number, because 22132845 - 2¹⁰ = 22131821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 104790 + ... + 105000.

Almost surely, 2^22132845 is an apocalyptic number.

It is an amenable number.

22132845 is an abundant number, since it is smaller than the sum of its proper divisors (24656403).

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

22132845 is a wasteful number, since it uses less digits than its factorization.

22132845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 263 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 22132845 is about 4704.5557707397. Note that the first 3 decimals coincide. The cubic root of 22132845 is about 280.7667969726.

Adding to 22132845 its reverse (54823122), we get a palindrome (76955967).

The spelling of 22132845 in words is "twenty-two million, one hundred thirty-two thousand, eight hundred forty-five".