1298680306 has 32 divisors (see below), whose sum is σ = 2474540928. Its totient is φ = 496429440.

The previous prime is 1298680261. The next prime is 1298680307. The reversal of 1298680306 is 6030868921.

It is not an unprimeable number, because it can be changed into a prime (1298680307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71395 + ... + 87718.

It is an arithmetic number, because the mean of its divisors is an integer number (77329404).

Almost surely, 2^1298680306 is an apocalyptic number.

1298680306 is a deficient number, since it is larger than the sum of its proper divisors (1175860622).

1298680306 is a wasteful number, since it uses less digits than its factorization.

1298680306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159186.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 1298680306 is about 36037.2072447353. The cubic root of 1298680306 is about 1091.0234491408.

The spelling of 1298680306 in words is "one billion, two hundred ninety-eight million, six hundred eighty thousand, three hundred six".