1266379206 has 16 divisors (see below), whose sum is σ = 2542107648. Its totient is φ = 420568200.

The previous prime is 1266379199. The next prime is 1266379207. The reversal of 1266379206 is 6029736621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266379207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387790 + ... + 391041.

It is an arithmetic number, because the mean of its divisors is an integer number (158881728).

Almost surely, 2^1266379206 is an apocalyptic number.

1266379206 is an abundant number, since it is smaller than the sum of its proper divisors (1275728442).

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

1266379206 is a wasteful number, since it uses less digits than its factorization.

1266379206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779107.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 1266379206 is about 35586.2221372261. Note that the first 3 decimals coincide. The cubic root of 1266379206 is about 1081.9019999095.

The spelling of 1266379206 in words is "one billion, two hundred sixty-six million, three hundred seventy-nine thousand, two hundred six".