23640229 has 8 divisors (see below), whose sum is σ = 23922080. Its totient is φ = 23360400.

The previous prime is 23640209. The next prime is 23640233. The reversal of 23640229 is 92204632.

23640229 is nontrivially palindromic in base 4.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23640229 - 2⁹ = 23639717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23640197 and 23640206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23640209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37882 + ... + 38500.

It is an arithmetic number, because the mean of its divisors is an integer number (2990260).

Almost surely, 2^23640229 is an apocalyptic number.

It is an amenable number.

23640229 is a deficient number, since it is larger than the sum of its proper divisors (281851).

23640229 is a wasteful number, since it uses less digits than its factorization.

23640229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 23640229 is about 4862.1218619035. The cubic root of 23640229 is about 287.0013192605.

The spelling of 23640229 in words is "twenty-three million, six hundred forty thousand, two hundred twenty-nine".