24000020 has 72 divisors (see below), whose sum is σ = 57244320. Its totient is φ = 8379840.

The previous prime is 24000019. The next prime is 24000037. The reversal of 24000020 is 2000042.

It is a junction number, because it is equal to n+sod(n) for n = 23999971 and 24000007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 406751 + ... + 406809.

It is an arithmetic number, because the mean of its divisors is an integer number (795060).

Almost surely, 2^24000020 is an apocalyptic number.

24000020 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 24000020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28622160).

24000020 is an abundant number, since it is smaller than the sum of its proper divisors (33244300).

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

24000020 is a wasteful number, since it uses less digits than its factorization.

24000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 24000020 is about 4898.9815268074. The cubic root of 24000020 is about 288.4499941864.

Adding to 24000020 its reverse (2000042), we get a palindrome (26000062).

The spelling of 24000020 in words is "twenty-four million, twenty", and thus it is an aban number.