23816140 has 12 divisors (see below), whose sum is σ = 50013936. Its totient is φ = 9526448.

The previous prime is 23816137. The next prime is 23816141. The reversal of 23816140 is 4161832.

It is not an unprimeable number, because it can be changed into a prime (23816141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595384 + ... + 595423.

It is an arithmetic number, because the mean of its divisors is an integer number (4167828).

Almost surely, 2^23816140 is an apocalyptic number.

23816140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23816140 is an abundant number, since it is smaller than the sum of its proper divisors (26197796).

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

23816140 is a wasteful number, since it uses less digits than its factorization.

23816140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190816 (or 1190814 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 23816140 is about 4880.1782754322. The cubic root of 23816140 is about 287.7114361478.

Adding to 23816140 its reverse (4161832), we get a palindrome (27977972).

The spelling of 23816140 in words is "twenty-three million, eight hundred sixteen thousand, one hundred forty".