23340561 has 8 divisors (see below), whose sum is σ = 32473920. Its totient is φ = 14883792.

The previous prime is 23340547. The next prime is 23340587. The reversal of 23340561 is 16504332.

It is a happy number.

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

It is not a de Polignac number, because 23340561 - 2⁹ = 23340049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23344561) 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, 169066 + ... + 169203.

It is an arithmetic number, because the mean of its divisors is an integer number (4059240).

Almost surely, 2^23340561 is an apocalyptic number.

It is an amenable number.

23340561 is a deficient number, since it is larger than the sum of its proper divisors (9133359).

23340561 is a wasteful number, since it uses less digits than its factorization.

23340561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338295.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 23340561 is about 4831.2069920466. The cubic root of 23340561 is about 285.7834644749.

Adding to 23340561 its reverse (16504332), we get a palindrome (39844893).

The spelling of 23340561 in words is "twenty-three million, three hundred forty thousand, five hundred sixty-one".