20484928000 has 160 divisors (see below), whose sum is σ = 51287753088. Its totient is φ = 8160768000.

The previous prime is 20484927997. The next prime is 20484928001. The reversal of 20484928000 is 82948402.

It is a tau number, because it is divible by the number of its divisors (160).

It is not an unprimeable number, because it can be changed into a prime (20484928001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21183517 + ... + 21184483.

Almost surely, 2^20484928000 is an apocalyptic number.

20484928000 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 20484928000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25643876544).

20484928000 is an abundant number, since it is smaller than the sum of its proper divisors (30802825088).

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

20484928000 is an frugal number, since it uses more digits than its factorization.

20484928000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331 (or 1305 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 20484928000 in words is "twenty billion, four hundred eighty-four million, nine hundred twenty-eight thousand".