20104324400 has 60 divisors (see below), whose sum is σ = 48331719072. Its totient is φ = 8036555520.

The previous prime is 20104324397. The next prime is 20104324459. The reversal of 20104324400 is 442340102.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 639449 + ... + 670151.

Almost surely, 2^20104324400 is an apocalyptic number.

20104324400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20104324400 is an abundant number, since it is smaller than the sum of its proper divisors (28227394672).

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

20104324400 is a wasteful number, since it uses less digits than its factorization.

20104324400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32358 (or 32347 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20104324400 its reverse (442340102), we get a palindrome (20546664502).

The spelling of 20104324400 in words is "twenty billion, one hundred four million, three hundred twenty-four thousand, four hundred".