23430566 has 4 divisors (see below), whose sum is σ = 35145852. Its totient is φ = 11715282.

The previous prime is 23430559. The next prime is 23430569. The reversal of 23430566 is 66503432.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23430569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5857640 + ... + 5857643.

It is an arithmetic number, because the mean of its divisors is an integer number (8786463).

Almost surely, 2^23430566 is an apocalyptic number.

23430566 is a deficient number, since it is larger than the sum of its proper divisors (11715286).

23430566 is a wasteful number, since it uses less digits than its factorization.

23430566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11715285.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 23430566 is about 4840.5129893432. The cubic root of 23430566 is about 286.1503358154.

Adding to 23430566 its reverse (66503432), we get a palindrome (89933998).

The spelling of 23430566 in words is "twenty-three million, four hundred thirty thousand, five hundred sixty-six".