1288481760 has 72 divisors (see below), whose sum is σ = 4396948920. Its totient is φ = 343594752.

The previous prime is 1288481657. The next prime is 1288481771. The reversal of 1288481760 is 671848821.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 445950 + ... + 448829.

It is an arithmetic number, because the mean of its divisors is an integer number (61068735).

Almost surely, 2^1288481760 is an apocalyptic number.

1288481760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1288481760 is an abundant number, since it is smaller than the sum of its proper divisors (3108467160).

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

1288481760 is a wasteful number, since it uses less digits than its factorization.

1288481760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894800 (or 894789 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The square root of 1288481760 is about 35895.4281211410. The cubic root of 1288481760 is about 1088.1600020599.

The spelling of 1288481760 in words is "one billion, two hundred eighty-eight million, four hundred eighty-one thousand, seven hundred sixty".