1266960260 has 24 divisors (see below), whose sum is σ = 2697066456. Its totient is φ = 499841280.

The previous prime is 1266960239. The next prime is 1266960263. The reversal of 1266960260 is 620696621.

It can be written as a sum of positive squares in 4 ways, for example, as 101284096 + 1165676164 = 10064^2 + 34142^2 .

It is not an unprimeable number, because it can be changed into a prime (1266960263) 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, 432431 + ... + 435350.

It is an arithmetic number, because the mean of its divisors is an integer number (112377769).

Almost surely, 2^1266960260 is an apocalyptic number.

1266960260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1266960260 is an abundant number, since it is smaller than the sum of its proper divisors (1430106196).

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

1266960260 is a wasteful number, since it uses less digits than its factorization.

1266960260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867863 (or 867861 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 1266960260 is about 35594.3852313816. The cubic root of 1266960260 is about 1082.0674446566.

The spelling of 1266960260 in words is "one billion, two hundred sixty-six million, nine hundred sixty thousand, two hundred sixty".