23320229 has 4 divisors (see below), whose sum is σ = 24334176. Its totient is φ = 22306284.

The previous prime is 23320181. The next prime is 23320237. The reversal of 23320229 is 92202332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23320229 - 2²⁰ = 22271653 is a prime.

It is a super-2 number, since 2×23320229² = 1087666161224882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 1013923 = 23320229 / (2 + 3 + 3 + 2 + 0 + 2 + 2 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506939 + ... + 506984.

It is an arithmetic number, because the mean of its divisors is an integer number (6083544).

Almost surely, 2^23320229 is an apocalyptic number.

It is an amenable number.

23320229 is a deficient number, since it is larger than the sum of its proper divisors (1013947).

23320229 is a wasteful number, since it uses less digits than its factorization.

23320229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013946.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 23320229 is about 4829.1022975290. The cubic root of 23320229 is about 285.7004582237.

The spelling of 23320229 in words is "twenty-three million, three hundred twenty thousand, two hundred twenty-nine".