1299785746 has 16 divisors (see below), whose sum is σ = 2228808960. Its totient is φ = 556899840.

The previous prime is 1299785723. The next prime is 1299785759. The reversal of 1299785746 is 6475879921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52375 + ... + 73093.

It is an arithmetic number, because the mean of its divisors is an integer number (139300560).

Almost surely, 2^1299785746 is an apocalyptic number.

1299785746 is a deficient number, since it is larger than the sum of its proper divisors (929023214).

1299785746 is a wasteful number, since it uses less digits than its factorization.

1299785746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25209.

The product of its digits is 7620480, while the sum is 58.

The square root of 1299785746 is about 36052.5414638136. The cubic root of 1299785746 is about 1091.3329220000.

The spelling of 1299785746 in words is "one billion, two hundred ninety-nine million, seven hundred eighty-five thousand, seven hundred forty-six".