23428269 has 6 divisors (see below), whose sum is σ = 33840846. Its totient is φ = 15618840.

The previous prime is 23428267. The next prime is 23428291. The reversal of 23428269 is 96282432.

It can be written as a sum of positive squares in only one way, i.e., 13972644 + 9455625 = 3738^2 + 3075^2 .

It is not a de Polignac number, because 23428269 - 2¹ = 23428267 is a prime.

It is a super-2 number, since 2×23428269² = 1097767576672722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23428267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1301562 + ... + 1301579.

It is an arithmetic number, because the mean of its divisors is an integer number (5640141).

Almost surely, 2^23428269 is an apocalyptic number.

It is an amenable number.

23428269 is a deficient number, since it is larger than the sum of its proper divisors (10412577).

23428269 is a wasteful number, since it uses less digits than its factorization.

23428269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603147 (or 2603144 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 23428269 is about 4840.2757152873. The cubic root of 23428269 is about 286.1409846570.

It can be divided in two parts, 2 and 3428269, that added together give a triangular number (3428271 = T₂₆₁₈).

The spelling of 23428269 in words is "twenty-three million, four hundred twenty-eight thousand, two hundred sixty-nine".