13030448720 has 20 divisors (see below), whose sum is σ = 30295793460. Its totient is φ = 5212179456.

The previous prime is 13030448671. The next prime is 13030448741. The reversal of 13030448720 is 2784403031.

It can be written as a sum of positive squares in 2 ways, for example, as 2018884624 + 11011564096 = 44932^2 + 104936^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81440225 + ... + 81440384.

It is an arithmetic number, because the mean of its divisors is an integer number (1514789673).

Almost surely, 2^13030448720 is an apocalyptic number.

13030448720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13030448720 is an abundant number, since it is smaller than the sum of its proper divisors (17265344740).

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

13030448720 is a wasteful number, since it uses less digits than its factorization.

13030448720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162880622 (or 162880616 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 13030448720 in words is "thirteen billion, thirty million, four hundred forty-eight thousand, seven hundred twenty".