23222345 has 8 divisors (see below), whose sum is σ = 27906120. Its totient is φ = 18551680.

The previous prime is 23222299. The next prime is 23222363. The reversal of 23222345 is 54322232.

It can be written as a sum of positive squares in 4 ways, for example, as 6091024 + 17131321 = 2468^2 + 4139^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23222345 - 2¹² = 23218249 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23222345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175 + ... + 6915.

It is an arithmetic number, because the mean of its divisors is an integer number (3488265).

Almost surely, 2^23222345 is an apocalyptic number.

It is an amenable number.

23222345 is a deficient number, since it is larger than the sum of its proper divisors (4683775).

23222345 is an equidigital number, since it uses as much as digits as its factorization.

23222345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6555.

The product of its digits is 2880, while the sum is 23.

The square root of 23222345 is about 4818.9568373249. The cubic root of 23222345 is about 285.3001659497.

Adding to 23222345 its reverse (54322232), we get a palindrome (77544577).

The spelling of 23222345 in words is "twenty-three million, two hundred twenty-two thousand, three hundred forty-five".