1266875208 has 128 divisors (see below), whose sum is σ = 3659040000. Its totient is φ = 405651456.

The previous prime is 1266875201. The next prime is 1266875221. The reversal of 1266875208 is 8025786621.

It is not an unprimeable number, because it can be changed into a prime (1266875201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1647048 + ... + 1647816.

It is an arithmetic number, because the mean of its divisors is an integer number (28586250).

Almost surely, 2^1266875208 is an apocalyptic number.

1266875208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266875208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1829520000).

1266875208 is an abundant number, since it is smaller than the sum of its proper divisors (2392164792).

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

1266875208 is a wasteful number, since it uses less digits than its factorization.

1266875208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 1266875208 is about 35593.1904723361. The cubic root of 1266875208 is about 1082.0432307795.

The spelling of 1266875208 in words is "one billion, two hundred sixty-six million, eight hundred seventy-five thousand, two hundred eight".