22813243 has 4 divisors (see below), whose sum is σ = 24013960. Its totient is φ = 21612528.

The previous prime is 22813237. The next prime is 22813247. The reversal of 22813243 is 34231822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22813243 - 2⁹ = 22812731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22813247) 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 3 ways as a sum of consecutive naturals, for example, 600330 + ... + 600367.

It is an arithmetic number, because the mean of its divisors is an integer number (6003490).

Almost surely, 2^22813243 is an apocalyptic number.

22813243 is a deficient number, since it is larger than the sum of its proper divisors (1200717).

22813243 is a wasteful number, since it uses less digits than its factorization.

22813243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200716.

The product of its digits is 2304, while the sum is 25.

The square root of 22813243 is about 4776.3210737973. The cubic root of 22813243 is about 283.6148775420.

The spelling of 22813243 in words is "twenty-two million, eight hundred thirteen thousand, two hundred forty-three".