22821332 has 12 divisors (see below), whose sum is σ = 41225856. Its totient is φ = 11042520.

The previous prime is 22821269. The next prime is 22821353. The reversal of 22821332 is 23312822.

It is a junction number, because it is equal to n+sod(n) for n = 22821298 and 22821307.

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 3 ways as a sum of consecutive naturals, for example, 91898 + ... + 92145.

It is an arithmetic number, because the mean of its divisors is an integer number (3435488).

Almost surely, 2^22821332 is an apocalyptic number.

It is an amenable number.

22821332 is a deficient number, since it is larger than the sum of its proper divisors (18404524).

22821332 is a wasteful number, since it uses less digits than its factorization.

22821332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184078 (or 184076 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 22821332 is about 4777.1677801811. The cubic root of 22821332 is about 283.6483944726.

The spelling of 22821332 in words is "twenty-two million, eight hundred twenty-one thousand, three hundred thirty-two".