22355320 has 48 divisors (see below), whose sum is σ = 54482760. Its totient is φ = 8251776.

The previous prime is 22355297. The next prime is 22355321. The reversal of 22355320 is 2355322.

It is a junction number, because it is equal to n+sod(n) for n = 22355291 and 22355300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22355321) 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 11 ways as a sum of consecutive naturals, for example, 5107 + ... + 8413.

Almost surely, 2^22355320 is an apocalyptic number.

22355320 is a gapful number since it is divisible by the number (20) 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 22355320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27241380).

22355320 is an abundant number, since it is smaller than the sum of its proper divisors (32127440).

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

22355320 is a wasteful number, since it uses less digits than its factorization.

22355320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344 (or 3327 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 22355320 is about 4728.1412838451. The cubic root of 22355320 is about 281.7043999416.

The spelling of 22355320 in words is "twenty-two million, three hundred fifty-five thousand, three hundred twenty".