22672287 has 48 divisors (see below), whose sum is σ = 37908000. Its totient is φ = 12929280.

The previous prime is 22672277. The next prime is 22672333. The reversal of 22672287 is 78227622.

It is not a de Polignac number, because 22672287 - 2¹⁰ = 22671263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22672277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152089 + ... + 152237.

It is an arithmetic number, because the mean of its divisors is an integer number (789750).

Almost surely, 2^22672287 is an apocalyptic number.

22672287 is a deficient number, since it is larger than the sum of its proper divisors (15235713).

22672287 is a wasteful number, since it uses less digits than its factorization.

22672287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 245 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 22672287 is about 4761.5425021730. The cubic root of 22672287 is about 283.0295473734.

It can be divided in two parts, 2267 and 2287, that added together give a palindrome (4554).

The spelling of 22672287 in words is "twenty-two million, six hundred seventy-two thousand, two hundred eighty-seven".