23226818 has 4 divisors (see below), whose sum is σ = 34840230. Its totient is φ = 11613408.

The previous prime is 23226817. The next prime is 23226821. The reversal of 23226818 is 81862232.

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

It can be written as a sum of positive squares in only one way, i.e., 14799409 + 8427409 = 3847^2 + 2903^2 .

It is not an unprimeable number, because it can be changed into a prime (23226817) 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 as a sum of consecutive naturals, namely, 5806703 + ... + 5806706.

Almost surely, 2^23226818 is an apocalyptic number.

23226818 is a deficient number, since it is larger than the sum of its proper divisors (11613412).

23226818 is a wasteful number, since it uses less digits than its factorization.

23226818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11613411.

The product of its digits is 9216, while the sum is 32.

The square root of 23226818 is about 4819.4209195711. The cubic root of 23226818 is about 285.3184825856.

The spelling of 23226818 in words is "twenty-three million, two hundred twenty-six thousand, eight hundred eighteen".