24020400012 has 24 divisors (see below), whose sum is σ = 64054400256. Its totient is φ = 6862971408.

The previous prime is 24020399969. The next prime is 24020400013. The reversal of 24020400012 is 21000402042.

It is a junction number, because it is equal to n+sod(n) for n = 24020399964 and 24020400000.

It is not an unprimeable number, because it can be changed into a prime (24020400013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142978488 + ... + 142978655.

It is an arithmetic number, because the mean of its divisors is an integer number (2668933344).

Almost surely, 2^24020400012 is an apocalyptic number.

It is an amenable number.

24020400012 is an abundant number, since it is smaller than the sum of its proper divisors (40034000244).

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

24020400012 is a wasteful number, since it uses less digits than its factorization.

24020400012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285957157 (or 285957155 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 24020400012 its reverse (21000402042), we get a palindrome (45020802054).

The spelling of 24020400012 in words is "twenty-four billion, twenty million, four hundred thousand, twelve".