22687332 has 12 divisors (see below), whose sum is σ = 52937136. Its totient is φ = 7562440.

The previous prime is 22687331. The next prime is 22687397. The reversal of 22687332 is 23378622.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22687293 and 22687302.

It is not an unprimeable number, because it can be changed into a prime (22687331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 945294 + ... + 945317.

It is an arithmetic number, because the mean of its divisors is an integer number (4411428).

Almost surely, 2^22687332 is an apocalyptic number.

It is an amenable number.

22687332 is an abundant number, since it is smaller than the sum of its proper divisors (30249804).

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

22687332 is a wasteful number, since it uses less digits than its factorization.

22687332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890618 (or 1890616 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 22687332 is about 4763.1220853554. The cubic root of 22687332 is about 283.0921382947.

The spelling of 22687332 in words is "twenty-two million, six hundred eighty-seven thousand, three hundred thirty-two".