20481302304 has 120 divisors (see below), whose sum is σ = 60788393820. Its totient is φ = 6764373504.

The previous prime is 20481302291. The next prime is 20481302311. The reversal of 20481302304 is 40320318402.

It can be written as a sum of positive squares in 2 ways, for example, as 19641461904 + 839840400 = 140148^2 + 28980^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

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 19 ways as a sum of consecutive naturals, for example, 246282 + ... + 318774.

Almost surely, 2^20481302304 is an apocalyptic number.

20481302304 is a gapful number since it is divisible by the number (24) 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 20481302304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30394196910).

20481302304 is an abundant number, since it is smaller than the sum of its proper divisors (40307091516).

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

20481302304 is a wasteful number, since it uses less digits than its factorization.

20481302304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72624 (or 72607 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The spelling of 20481302304 in words is "twenty billion, four hundred eighty-one million, three hundred two thousand, three hundred four".