23040666 has 64 divisors (see below), whose sum is σ = 56678400. Its totient is φ = 6879600.

The previous prime is 23040653. The next prime is 23040679. The reversal of 23040666 is 66604032.

It is an interprime number because it is at equal distance from previous prime (23040653) and next prime (23040679).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46681 + ... + 47171.

It is an arithmetic number, because the mean of its divisors is an integer number (885600).

Almost surely, 2^23040666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23040666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28339200).

23040666 is an abundant number, since it is smaller than the sum of its proper divisors (33637734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23040666 is a wasteful number, since it uses less digits than its factorization.

23040666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 23040666 is about 4800.0693744987. The cubic root of 23040666 is about 284.5542061047.

23040666 divided by its sum of digits (27) gives a palindrome (853358).

Adding to 23040666 its reverse (66604032), we get a palindrome (89644698).

The spelling of 23040666 in words is "twenty-three million, forty thousand, six hundred sixty-six".