22020336 has 100 divisors (see below), whose sum is σ = 68688312. Its totient is φ = 6770304.

The previous prime is 22020319. The next prime is 22020337. The reversal of 22020336 is 63302022.

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

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16195 + ... + 17501.

Almost surely, 2^22020336 is an apocalyptic number.

22020336 is a gapful number since it is divisible by the number (26) 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 22020336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34344156).

22020336 is an abundant number, since it is smaller than the sum of its proper divisors (46667976).

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

22020336 is a wasteful number, since it uses less digits than its factorization.

22020336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340 (or 1325 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 22020336 is about 4692.5830839741. The cubic root of 22020336 is about 280.2902432525.

Adding to 22020336 its reverse (63302022), we get a palindrome (85322358).

The spelling of 22020336 in words is "twenty-two million, twenty thousand, three hundred thirty-six".