23226645 has 32 divisors (see below), whose sum is σ = 42134400. Its totient is φ = 10831104.

The previous prime is 23226613. The next prime is 23226647. The reversal of 23226645 is 54662232.

It is not a de Polignac number, because 23226645 - 2⁵ = 23226613 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23226647) 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, 571 + ... + 6839.

It is an arithmetic number, because the mean of its divisors is an integer number (1316700).

Almost surely, 2^23226645 is an apocalyptic number.

It is an amenable number.

23226645 is a deficient number, since it is larger than the sum of its proper divisors (18907755).

23226645 is a wasteful number, since it uses less digits than its factorization.

23226645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6309.

The product of its digits is 17280, while the sum is 30.

The square root of 23226645 is about 4819.4029713233. The cubic root of 23226645 is about 285.3177742059.

Adding to 23226645 its reverse (54662232), we get a palindrome (77888877).

It can be divided in two parts, 23226 and 645, that added together give a triangular number (23871 = T₂₁₈).

The spelling of 23226645 in words is "twenty-three million, two hundred twenty-six thousand, six hundred forty-five".