1280348160 has 416 divisors, whose sum is σ = 5064003840. Its totient is φ = 268959744.

The previous prime is 1280348141. The next prime is 1280348171. The reversal of 1280348160 is 618430821.

It is a tau number, because it is divible by the number of its divisors (416).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5590926 + ... + 5591154.

Almost surely, 2^1280348160 is an apocalyptic number.

1280348160 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 1280348160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2532001920).

1280348160 is an abundant number, since it is smaller than the sum of its proper divisors (3783655680).

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

1280348160 is a wasteful number, since it uses less digits than its factorization.

1280348160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 1280348160 is about 35781.9529930942. The cubic root of 1280348160 is about 1085.8654805927.

Adding to 1280348160 its reverse (618430821), we get a palindrome (1898778981).

The spelling of 1280348160 in words is "one billion, two hundred eighty million, three hundred forty-eight thousand, one hundred sixty".