23852020 has 72 divisors (see below), whose sum is σ = 55552392. Its totient is φ = 8570880.

The previous prime is 23851991. The next prime is 23852021. The reversal of 23852020 is 2025832.

It can be written as a sum of positive squares in 4 ways, for example, as 5550736 + 18301284 = 2356^2 + 4278^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23851982 and 23852000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23852021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 326704 + ... + 326776.

It is an arithmetic number, because the mean of its divisors is an integer number (771561).

Almost surely, 2^23852020 is an apocalyptic number.

23852020 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 23852020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27776196).

23852020 is an abundant number, since it is smaller than the sum of its proper divisors (31700372).

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

23852020 is a wasteful number, since it uses less digits than its factorization.

23852020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 23852020 is about 4883.8529871404. The cubic root of 23852020 is about 287.8558467115.

Adding to 23852020 its reverse (2025832), we get a palindrome (25877852).

The spelling of 23852020 in words is "twenty-three million, eight hundred fifty-two thousand, twenty".