23830940 has 144 divisors (see below), whose sum is σ = 66017280. Its totient is φ = 7050240.

The previous prime is 23830913. The next prime is 23830943. The reversal of 23830940 is 4903832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23830943) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 768725 + ... + 768755.

Almost surely, 2^23830940 is an apocalyptic number.

23830940 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 23830940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33008640).

23830940 is an abundant number, since it is smaller than the sum of its proper divisors (42186340).

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

23830940 is a wasteful number, since it uses less digits than its factorization.

23830940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 23830940 is about 4881.6943779798. The cubic root of 23830940 is about 287.7710210556.

The spelling of 23830940 in words is "twenty-three million, eight hundred thirty thousand, nine hundred forty".