20800004024 has 32 divisors (see below), whose sum is σ = 39175488000. Its totient is φ = 10353315840.

The previous prime is 20800003981. The next prime is 20800004041. The reversal of 20800004024 is 42040000802.

It is a junction number, because it is equal to n+sod(n) for n = 20800003987 and 20800004005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1635209 + ... + 1647879.

It is an arithmetic number, because the mean of its divisors is an integer number (1224234000).

Almost surely, 2^20800004024 is an apocalyptic number.

It is an amenable number.

20800004024 is a deficient number, since it is larger than the sum of its proper divisors (18375483976).

20800004024 is a wasteful number, since it uses less digits than its factorization.

20800004024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13583 (or 13579 counting only the distinct ones).

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

Adding to 20800004024 its reverse (42040000802), we get a palindrome (62840004826).

The spelling of 20800004024 in words is "twenty billion, eight hundred million, four thousand, twenty-four".