23063640 has 64 divisors (see below), whose sum is σ = 70191360. Its totient is φ = 6061440.

The previous prime is 23063633. The next prime is 23063717. The reversal of 23063640 is 4636032.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 23063640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7167 + ... + 9873.

It is an arithmetic number, because the mean of its divisors is an integer number (1096740).

Almost surely, 2^23063640 is an apocalyptic number.

23063640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23063640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35095680).

23063640 is an abundant number, since it is smaller than the sum of its proper divisors (47127720).

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

23063640 is a wasteful number, since it uses less digits than its factorization.

23063640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2792 (or 2788 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 23063640 is about 4802.4618686669. The cubic root of 23063640 is about 284.6487516461.

Adding to 23063640 its reverse (4636032), we get a palindrome (27699672).

The spelling of 23063640 in words is "twenty-three million, sixty-three thousand, six hundred forty".