22320243 has 12 divisors (see below), whose sum is σ = 35171448. Its totient is φ = 13527360.

The previous prime is 22320241. The next prime is 22320251. The reversal of 22320243 is 34202322.

It is not a de Polignac number, because 22320243 - 2¹ = 22320241 is a prime.

It is a super-3 number, since 3×22320243³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22320241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112630 + ... + 112827.

It is an arithmetic number, because the mean of its divisors is an integer number (2930954).

Almost surely, 2^22320243 is an apocalyptic number.

22320243 is a deficient number, since it is larger than the sum of its proper divisors (12851205).

22320243 is a wasteful number, since it uses less digits than its factorization.

22320243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225474 (or 225471 counting only the distinct ones).

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

The square root of 22320243 is about 4724.4304418628. The cubic root of 22320243 is about 281.5569850994.

Adding to 22320243 its reverse (34202322), we get a palindrome (56522565).

The spelling of 22320243 in words is "twenty-two million, three hundred twenty thousand, two hundred forty-three".