23009305 has 8 divisors (see below), whose sum is σ = 30121344. Its totient is φ = 16734000.

The previous prime is 23009299. The next prime is 23009309. The reversal of 23009305 is 50390032.

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

It is not a de Polignac number, because 23009305 - 2³ = 23009297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23009309) 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, 209121 + ... + 209230.

It is an arithmetic number, because the mean of its divisors is an integer number (3765168).

Almost surely, 2^23009305 is an apocalyptic number.

It is an amenable number.

23009305 is a deficient number, since it is larger than the sum of its proper divisors (7112039).

23009305 is a wasteful number, since it uses less digits than its factorization.

23009305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418367.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 23009305 is about 4796.8015385254. The cubic root of 23009305 is about 284.4250438033.

Adding to 23009305 its reverse (50390032), we get a palindrome (73399337).

The spelling of 23009305 in words is "twenty-three million, nine thousand, three hundred five".