20804024000 has 56 divisors (see below), whose sum is σ = 51521185248. Its totient is φ = 8321606400.

The previous prime is 20804023997. The next prime is 20804024093. The reversal of 20804024000 is 42040802.

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

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, 1292252 + ... + 1308251.

Almost surely, 2^20804024000 is an apocalyptic number.

20804024000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20804024000 is an abundant number, since it is smaller than the sum of its proper divisors (30717161248).

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

20804024000 is an equidigital number, since it uses as much as digits as its factorization.

20804024000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600530 (or 2600510 counting only the distinct ones).

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

Adding to 20804024000 its reverse (42040802), we get a palindrome (20846064802).

The spelling of 20804024000 in words is "twenty billion, eight hundred four million, twenty-four thousand".