24424020 has 72 divisors (see below), whose sum is σ = 75688704. Its totient is φ = 6372288.

The previous prime is 24424007. The next prime is 24424051. The reversal of 24424020 is 2042442.

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 = 24423984 and 24424002.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7017 + ... + 9903.

It is an arithmetic number, because the mean of its divisors is an integer number (1051232).

Almost surely, 2^24424020 is an apocalyptic number.

24424020 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 24424020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37844352).

24424020 is an abundant number, since it is smaller than the sum of its proper divisors (51264684).

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

24424020 is a wasteful number, since it uses less digits than its factorization.

24424020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949 (or 2944 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 24424020 is about 4942.0663694451. The cubic root of 24424020 is about 290.1387366298.

Adding to 24424020 its reverse (2042442), we get a palindrome (26466462).

The spelling of 24424020 in words is "twenty-four million, four hundred twenty-four thousand, twenty".