22068684 has 72 divisors (see below), whose sum is σ = 63528192. Its totient is φ = 6394080.

The previous prime is 22068679. The next prime is 22068689. The reversal of 22068684 is 48686022.

It is an interprime number because it is at equal distance from previous prime (22068679) and next prime (22068689).

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

It is not an unprimeable number, because it can be changed into a prime (22068689) 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 23 ways as a sum of consecutive naturals, for example, 7897 + ... + 10319.

It is an arithmetic number, because the mean of its divisors is an integer number (882336).

Almost surely, 2^22068684 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 22068684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31764096).

22068684 is an abundant number, since it is smaller than the sum of its proper divisors (41459508).

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

22068684 is a wasteful number, since it uses less digits than its factorization.

22068684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467 (or 2462 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 22068684 is about 4697.7317931104. The cubic root of 22068684 is about 280.4952290265.

The spelling of 22068684 in words is "twenty-two million, sixty-eight thousand, six hundred eighty-four".