1286264760 has 64 divisors (see below), whose sum is σ = 4209598080. Its totient is φ = 311821440.

The previous prime is 1286264737. The next prime is 1286264773. The reversal of 1286264760 is 674626821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485902 + ... + 488541.

It is an arithmetic number, because the mean of its divisors is an integer number (65774970).

Almost surely, 2^1286264760 is an apocalyptic number.

1286264760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1286264760 is an abundant number, since it is smaller than the sum of its proper divisors (2923333320).

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

1286264760 is a wasteful number, since it uses less digits than its factorization.

1286264760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974468 (or 974464 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 1286264760 is about 35864.5334557694. The cubic root of 1286264760 is about 1087.5355369547.

It can be divided in two parts, 128626 and 4760, that added together give a triangular number (133386 = T₅₁₆).

The spelling of 1286264760 in words is "one billion, two hundred eighty-six million, two hundred sixty-four thousand, seven hundred sixty".