1286246480 has 80 divisors (see below), whose sum is σ = 3131049600. Its totient is φ = 490473984.

The previous prime is 1286246461. The next prime is 1286246519. The reversal of 1286246480 is 846426821.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 641159 + ... + 643161.

It is an arithmetic number, because the mean of its divisors is an integer number (39138120).

Almost surely, 2^1286246480 is an apocalyptic number.

1286246480 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 1286246480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1565524800).

1286246480 is an abundant number, since it is smaller than the sum of its proper divisors (1844803120).

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

1286246480 is a wasteful number, since it uses less digits than its factorization.

1286246480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388 (or 2382 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 41.

The square root of 1286246480 is about 35864.2786069928. The cubic root of 1286246480 is about 1087.5303850232.

The spelling of 1286246480 in words is "one billion, two hundred eighty-six million, two hundred forty-six thousand, four hundred eighty".