23440666 has 8 divisors (see below), whose sum is σ = 35345664. Its totient is φ = 11658780.

The previous prime is 23440663. The next prime is 23440679. The reversal of 23440666 is 66604432.

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

It is not an unprimeable number, because it can be changed into a prime (23440663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30300 + ... + 31063.

It is an arithmetic number, because the mean of its divisors is an integer number (4418208).

Almost surely, 2^23440666 is an apocalyptic number.

23440666 is a deficient number, since it is larger than the sum of its proper divisors (11904998).

23440666 is a wasteful number, since it uses less digits than its factorization.

23440666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61556.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 23440666 is about 4841.5561547916. The cubic root of 23440666 is about 286.1914459792.

The spelling of 23440666 in words is "twenty-three million, four hundred forty thousand, six hundred sixty-six".