24021144020 has 48 divisors (see below), whose sum is σ = 51094459920. Its totient is φ = 9485144064.

The previous prime is 24021143999. The next prime is 24021144029. The reversal of 24021144020 is 2044112042.

It can be written as a sum of positive squares in 8 ways, for example, as 1512743236 + 22508400784 = 38894^2 + 150028^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 24021143983 and 24021144001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24021144029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 754586 + ... + 785774.

It is an arithmetic number, because the mean of its divisors is an integer number (1064467915).

Almost surely, 2^24021144020 is an apocalyptic number.

24021144020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24021144020 is an abundant number, since it is smaller than the sum of its proper divisors (27073315900).

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

24021144020 is a wasteful number, since it uses less digits than its factorization.

24021144020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31692 (or 31690 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 24021144020 its reverse (2044112042), we get a palindrome (26065256062).

The spelling of 24021144020 in words is "twenty-four billion, twenty-one million, one hundred forty-four thousand, twenty".