22023320 has 32 divisors (see below), whose sum is σ = 54058320. Its totient is φ = 8008320.

The previous prime is 22023319. The next prime is 22023329. The reversal of 22023320 is 2332022.

It is a junction number, because it is equal to n+sod(n) for n = 22023295 and 22023304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22023329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24587 + ... + 25466.

Almost surely, 2^22023320 is an apocalyptic number.

22023320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22023320 is an abundant number, since it is smaller than the sum of its proper divisors (32035000).

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

22023320 is a wasteful number, since it uses less digits than its factorization.

22023320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50075 (or 50071 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 22023320 is about 4692.9010217562. The cubic root of 22023320 is about 280.3029034939.

Adding to 22023320 its reverse (2332022), we get a palindrome (24355342).

The spelling of 22023320 in words is "twenty-two million, twenty-three thousand, three hundred twenty".