22016304 has 60 divisors (see below), whose sum is σ = 62945376. Its totient is φ = 7180416.

The previous prime is 22016287. The next prime is 22016321. The reversal of 22016304 is 40361022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22016287) and next prime (22016321).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 11 ways as a sum of consecutive naturals, for example, 5142 + ... + 8394.

Almost surely, 2^22016304 is an apocalyptic number.

22016304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22016304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31472688).

22016304 is an abundant number, since it is smaller than the sum of its proper divisors (40929072).

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

22016304 is a wasteful number, since it uses less digits than its factorization.

22016304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314 (or 3305 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 22016304 is about 4692.1534501762. The cubic root of 22016304 is about 280.2731348359.

Adding to 22016304 its reverse (40361022), we get a palindrome (62377326).

The spelling of 22016304 in words is "twenty-two million, sixteen thousand, three hundred four".