23823040 has 56 divisors (see below), whose sum is σ = 57332880. Its totient is φ = 9427968.

The previous prime is 23823011. The next prime is 23823043. The reversal of 23823040 is 4032832.

It is not an unprimeable number, because it can be changed into a prime (23823043) 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, 34539 + ... + 35221.

Almost surely, 2^23823040 is an apocalyptic number.

23823040 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 23823040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28666440).

23823040 is an abundant number, since it is smaller than the sum of its proper divisors (33509840).

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

23823040 is a wasteful number, since it uses less digits than its factorization.

23823040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 23823040 is about 4880.8851656231. The cubic root of 23823040 is about 287.7392186687.

Adding to 23823040 its reverse (4032832), we get a palindrome (27855872).

The spelling of 23823040 in words is "twenty-three million, eight hundred twenty-three thousand, forty".