1206740986 has 24 divisors (see below), whose sum is σ = 1991922912. Its totient is φ = 547885800.

The previous prime is 1206740981. The next prime is 1206741001. The reversal of 1206740986 is 6890476021.

It is not an unprimeable number, because it can be changed into a prime (1206740981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254901 + ... + 259591.

It is an arithmetic number, because the mean of its divisors is an integer number (82996788).

Almost surely, 2^1206740986 is an apocalyptic number.

1206740986 is a deficient number, since it is larger than the sum of its proper divisors (785181926).

1206740986 is a wasteful number, since it uses less digits than its factorization.

1206740986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5778 (or 5767 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1206740986 is about 34738.1776436243. The cubic root of 1206740986 is about 1064.6446788677.

The spelling of 1206740986 in words is "one billion, two hundred six million, seven hundred forty thousand, nine hundred eighty-six".