22329828 has 36 divisors (see below), whose sum is σ = 56591808. Its totient is φ = 7423920.

The previous prime is 22329821. The next prime is 22329829. The reversal of 22329828 is 82892322.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 22329792 and 22329801.

It is not an unprimeable number, because it can be changed into a prime (22329821) 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 11 ways as a sum of consecutive naturals, for example, 22225 + ... + 23207.

Almost surely, 2^22329828 is an apocalyptic number.

It is an amenable number.

22329828 is an abundant number, since it is smaller than the sum of its proper divisors (34261980).

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

22329828 is a wasteful number, since it uses less digits than its factorization.

22329828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624 (or 1619 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 22329828 is about 4725.4447409741. Note that the first 3 decimals coincide. The cubic root of 22329828 is about 281.5972824129.

The spelling of 22329828 in words is "twenty-two million, three hundred twenty-nine thousand, eight hundred twenty-eight".