23443020 has 120 divisors (see below), whose sum is σ = 76230000. Its totient is φ = 6023808.

The previous prime is 23442997. The next prime is 23443027. The reversal of 23443020 is 2034432.

23443020 is a `hidden beast` number, since 234 + 430 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23442984 and 23443002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23443027) 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 39 ways as a sum of consecutive naturals, for example, 46731 + ... + 47229.

It is an arithmetic number, because the mean of its divisors is an integer number (635250).

Almost surely, 2^23443020 is an apocalyptic number.

23443020 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 23443020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38115000).

23443020 is an abundant number, since it is smaller than the sum of its proper divisors (52786980).

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

23443020 is a wasteful number, since it uses less digits than its factorization.

23443020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 23443020 is about 4841.7992523441. The cubic root of 23443020 is about 286.2010257996.

Adding to 23443020 its reverse (2034432), we get a palindrome (25477452).

The spelling of 23443020 in words is "twenty-three million, four hundred forty-three thousand, twenty".