23808140 has 24 divisors (see below), whose sum is σ = 52629360. Its totient is φ = 9021888.

The previous prime is 23808139. The next prime is 23808181. The reversal of 23808140 is 4180832.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 30947 + ... + 31706.

It is an arithmetic number, because the mean of its divisors is an integer number (2192890).

Almost surely, 2^23808140 is an apocalyptic number.

23808140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23808140 is an abundant number, since it is smaller than the sum of its proper divisors (28821220).

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

23808140 is a wasteful number, since it uses less digits than its factorization.

23808140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62681 (or 62679 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 23808140 is about 4879.3585644017. The cubic root of 23808140 is about 287.6792178111.

Adding to 23808140 its reverse (4180832), we get a palindrome (27988972).

The spelling of 23808140 in words is "twenty-three million, eight hundred eight thousand, one hundred forty".