23104340 has 48 divisors (see below), whose sum is σ = 56179200. Its totient is φ = 7817472.

The previous prime is 23104337. The next prime is 23104349. The reversal of 23104340 is 4340132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23104349) 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, 10016 + ... + 12104.

It is an arithmetic number, because the mean of its divisors is an integer number (1170400).

Almost surely, 2^23104340 is an apocalyptic number.

23104340 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 23104340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28089600).

23104340 is an abundant number, since it is smaller than the sum of its proper divisors (33074860).

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

23104340 is a wasteful number, since it uses less digits than its factorization.

23104340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184 (or 2182 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23104340 is about 4806.6974109049. The cubic root of 23104340 is about 284.8160914666.

Adding to 23104340 its reverse (4340132), we get a palindrome (27444472).

The spelling of 23104340 in words is "twenty-three million, one hundred four thousand, three hundred forty".