22821696 has 112 divisors (see below), whose sum is σ = 68762880. Its totient is φ = 7418880.

The previous prime is 22821683. The next prime is 22821703. The reversal of 22821696 is 69612822.

It is a happy number.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 22821696.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81076 + ... + 81356.

Almost surely, 2^22821696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22821696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34381440).

22821696 is an abundant number, since it is smaller than the sum of its proper divisors (45941184).

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

22821696 is a wasteful number, since it uses less digits than its factorization.

22821696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 333 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 22821696 is about 4777.2058779165. The cubic root of 22821696 is about 283.6499025275.

The spelling of 22821696 in words is "twenty-two million, eight hundred twenty-one thousand, six hundred ninety-six".