23424020 has 12 divisors (see below), whose sum is σ = 49190484. Its totient is φ = 9369600.

The previous prime is 23424013. The next prime is 23424029. The reversal of 23424020 is 2042432.

It can be written as a sum of positive squares in 2 ways, for example, as 5750404 + 17673616 = 2398^2 + 4204^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23424020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23424029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585581 + ... + 585620.

It is an arithmetic number, because the mean of its divisors is an integer number (4099207).

Almost surely, 2^23424020 is an apocalyptic number.

23424020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23424020 is an abundant number, since it is smaller than the sum of its proper divisors (25766464).

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

23424020 is a wasteful number, since it uses less digits than its factorization.

23424020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171210 (or 1171208 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 23424020 is about 4839.8367741072. The cubic root of 23424020 is about 286.1236852348.

Adding to 23424020 its reverse (2042432), we get a palindrome (25466452).

The spelling of 23424020 in words is "twenty-three million, four hundred twenty-four thousand, twenty".