23108540 has 48 divisors (see below), whose sum is σ = 59731392. Its totient is φ = 7312896.

The previous prime is 23108507. The next prime is 23108581. The reversal of 23108540 is 4580132.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4529 + ... + 8168.

It is an arithmetic number, because the mean of its divisors is an integer number (1244404).

Almost surely, 2^23108540 is an apocalyptic number.

23108540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23108540 is an abundant number, since it is smaller than the sum of its proper divisors (36622852).

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

23108540 is a wasteful number, since it uses less digits than its factorization.

23108540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12726 (or 12724 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 23108540 is about 4807.1342814613. The cubic root of 23108540 is about 284.8333487597.

Adding to 23108540 its reverse (4580132), we get a palindrome (27688672).

The spelling of 23108540 in words is "twenty-three million, one hundred eight thousand, five hundred forty".