23616140 has 12 divisors (see below), whose sum is σ = 49593936. Its totient is φ = 9446448.

The previous prime is 23616139. The next prime is 23616143. The reversal of 23616140 is 4161632.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (23616143) 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, 590384 + ... + 590423.

It is an arithmetic number, because the mean of its divisors is an integer number (4132828).

Almost surely, 2^23616140 is an apocalyptic number.

23616140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23616140 is an abundant number, since it is smaller than the sum of its proper divisors (25977796).

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

23616140 is a wasteful number, since it uses less digits than its factorization.

23616140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180816 (or 1180814 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 23616140 is about 4859.6440198846. The cubic root of 23616140 is about 286.9038029408.

Adding to 23616140 its reverse (4161632), we get a palindrome (27777772).

The spelling of 23616140 in words is "twenty-three million, six hundred sixteen thousand, one hundred forty".