23240644 has 24 divisors (see below), whose sum is σ = 46751040. Its totient is φ = 9902496.

The previous prime is 23240641. The next prime is 23240663. The reversal of 23240644 is 44604232.

It is not an unprimeable number, because it can be changed into a prime (23240641) 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 7 ways as a sum of consecutive naturals, for example, 2694 + ... + 7330.

It is an arithmetic number, because the mean of its divisors is an integer number (1947960).

Almost surely, 2^23240644 is an apocalyptic number.

It is an amenable number.

23240644 is an abundant number, since it is smaller than the sum of its proper divisors (23510396).

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

23240644 is a wasteful number, since it uses less digits than its factorization.

23240644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4827 (or 4825 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 23240644 is about 4820.8551108699. The cubic root of 23240644 is about 285.3750842672.

Adding to 23240644 its reverse (44604232), we get a palindrome (67844876).

The spelling of 23240644 in words is "twenty-three million, two hundred forty thousand, six hundred forty-four".