22320020304 has 120 divisors (see below), whose sum is σ = 64580485632. Its totient is φ = 7190726400.

The previous prime is 22320020287. The next prime is 22320020383. The reversal of 22320020304 is 40302002322.

22320020304 is a `hidden beast` number, since 22 + 320 + 0 + 20 + 304 = 666.

It is a super-3 number, since 3×22320020304³ (a number of 32 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 790657 + ... + 818399.

Almost surely, 2^22320020304 is an apocalyptic number.

22320020304 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 22320020304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32290242816).

22320020304 is an abundant number, since it is smaller than the sum of its proper divisors (42260465328).

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

22320020304 is a wasteful number, since it uses less digits than its factorization.

22320020304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27945 (or 27936 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 22320020304 its reverse (40302002322), we get a palindrome (62622022626).

The spelling of 22320020304 in words is "twenty-two billion, three hundred twenty million, twenty thousand, three hundred four".