20904703200 has 216 divisors, whose sum is σ = 73853148096. Its totient is φ = 5564160000.

The previous prime is 20904703199. The next prime is 20904703213. The reversal of 20904703200 is 230740902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4324785 + ... + 4329615.

Almost surely, 2^20904703200 is an apocalyptic number.

20904703200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20904703200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36926574048).

20904703200 is an abundant number, since it is smaller than the sum of its proper divisors (52948444896).

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

20904703200 is a wasteful number, since it uses less digits than its factorization.

20904703200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5458 (or 5442 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The spelling of 20904703200 in words is "twenty billion, nine hundred four million, seven hundred three thousand, two hundred".