23807040 has 56 divisors (see below), whose sum is σ = 75590400. Its totient is φ = 6348288.

The previous prime is 23807033. The next prime is 23807041. The reversal of 23807040 is 4070832.

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 23807040.

It is not an unprimeable number, because it can be changed into a prime (23807041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11440 + ... + 13359.

Almost surely, 2^23807040 is an apocalyptic number.

23807040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23807040 is an abundant number, since it is smaller than the sum of its proper divisors (51783360).

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

23807040 is a wasteful number, since it uses less digits than its factorization.

23807040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24819 (or 24809 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 23807040 is about 4879.2458433656. The cubic root of 23807040 is about 287.6747872254.

Adding to 23807040 its reverse (4070832), we get a palindrome (27877872).

The spelling of 23807040 in words is "twenty-three million, eight hundred seven thousand, forty".