22623243 has 32 divisors (see below), whose sum is σ = 34583040. Its totient is φ = 13063680.

The previous prime is 22623241. The next prime is 22623257. The reversal of 22623243 is 34232622.

It is a happy number.

It is not a de Polignac number, because 22623243 - 2¹ = 22623241 is a prime.

It is a super-2 number, since 2×22623243² = 1023622247674098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22623241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35538 + ... + 36168.

It is an arithmetic number, because the mean of its divisors is an integer number (1080720).

Almost surely, 2^22623243 is an apocalyptic number.

22623243 is a deficient number, since it is larger than the sum of its proper divisors (11959797).

22623243 is a wasteful number, since it uses less digits than its factorization.

22623243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707.

The product of its digits is 3456, while the sum is 24.

The square root of 22623243 is about 4756.3897022847. The cubic root of 22623243 is about 282.8253197469.

Adding to 22623243 its reverse (34232622), we get a palindrome (56855865).

The spelling of 22623243 in words is "twenty-two million, six hundred twenty-three thousand, two hundred forty-three".