1286421334 has 24 divisors (see below), whose sum is σ = 2221690248. Its totient is φ = 553957920.

The previous prime is 1286421319. The next prime is 1286421341. The reversal of 1286421334 is 4331246821.

It is a self number, because there is not a number n which added to its sum of digits gives 1286421334.

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 11 ways as a sum of consecutive naturals, for example, 73047 + ... + 88930.

It is an arithmetic number, because the mean of its divisors is an integer number (92570427).

Almost surely, 2^1286421334 is an apocalyptic number.

1286421334 is a deficient number, since it is larger than the sum of its proper divisors (935268914).

1286421334 is a wasteful number, since it uses less digits than its factorization.

1286421334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162028 (or 162009 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 1286421334 is about 35866.7162422210. The cubic root of 1286421334 is about 1087.5796628832.

The spelling of 1286421334 in words is "one billion, two hundred eighty-six million, four hundred twenty-one thousand, three hundred thirty-four".