1303560720 has 360 divisors, whose sum is σ = 5557144320. Its totient is φ = 270789120.

The previous prime is 1303560679. The next prime is 1303560749. The reversal of 1303560720 is 270653031.

It is a happy number.

1303560720 is a `hidden beast` number, since 1 + 3 + 0 + 35 + 607 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 386401 + ... + 389759.

It is an arithmetic number, because the mean of its divisors is an integer number (15436512).

Almost surely, 2^1303560720 is an apocalyptic number.

1303560720 is a gapful number since it is divisible by the number (10) 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 1303560720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2778572160).

1303560720 is an abundant number, since it is smaller than the sum of its proper divisors (4253583600).

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

1303560720 is a wasteful number, since it uses less digits than its factorization.

1303560720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403 (or 3387 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 1303560720 is about 36104.8572909519. The cubic root of 1303560720 is about 1092.3884219806.

The spelling of 1303560720 in words is "one billion, three hundred three million, five hundred sixty thousand, seven hundred twenty".