23440064 has 28 divisors (see below), whose sum is σ = 46704504. Its totient is φ = 11672064.

The previous prime is 23440063. The next prime is 23440073. The reversal of 23440064 is 46004432.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23440063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19052 + ... + 20244.

It is an arithmetic number, because the mean of its divisors is an integer number (1668018).

Almost surely, 2^23440064 is an apocalyptic number.

It is an amenable number.

23440064 is a deficient number, since it is larger than the sum of its proper divisors (23264440).

23440064 is a wasteful number, since it uses less digits than its factorization.

23440064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512 (or 1502 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 23440064 is about 4841.4939842986. The cubic root of 23440064 is about 286.1889959816.

Adding to 23440064 its reverse (46004432), we get a palindrome (69444496).

The spelling of 23440064 in words is "twenty-three million, four hundred forty thousand, sixty-four".