23445664 has 48 divisors (see below), whose sum is σ = 51559200. Its totient is φ = 10402560.

The previous prime is 23445647. The next prime is 23445683. The reversal of 23445664 is 46654432.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14362 + ... + 15910.

It is an arithmetic number, because the mean of its divisors is an integer number (1074150).

Almost surely, 2^23445664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23445664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25779600).

23445664 is an abundant number, since it is smaller than the sum of its proper divisors (28113536).

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

23445664 is a wasteful number, since it uses less digits than its factorization.

23445664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613 (or 1605 counting only the distinct ones).

The product of its digits is 69120, while the sum is 34.

The square root of 23445664 is about 4842.0722836405. The cubic root of 23445664 is about 286.2117850372.

It can be divided in two parts, 2344 and 5664, that added together give a palindrome (8008).

The spelling of 23445664 in words is "twenty-three million, four hundred forty-five thousand, six hundred sixty-four".