23108640 has 96 divisors (see below), whose sum is σ = 75188736. Its totient is φ = 5959680.

The previous prime is 23108639. The next prime is 23108641. The reversal of 23108640 is 4680132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23108639) and next prime (23108641).

It is a tau number, because it is divible by the number of its divisors (96).

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 23108640.

It is not an unprimeable number, because it can be changed into a prime (23108641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14104 + ... + 15656.

It is an arithmetic number, because the mean of its divisors is an integer number (783216).

Almost surely, 2^23108640 is an apocalyptic number.

23108640 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 23108640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37594368).

23108640 is an abundant number, since it is smaller than the sum of its proper divisors (52080096).

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

23108640 is a wasteful number, since it uses less digits than its factorization.

23108640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602 (or 1594 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 23108640 is about 4807.1446826573. The cubic root of 23108640 is about 284.8337596222.

Adding to 23108640 its reverse (4680132), we get a palindrome (27788772).

The spelling of 23108640 in words is "twenty-three million, one hundred eight thousand, six hundred forty".