1266845274 has 24 divisors (see below), whose sum is σ = 2808666432. Its totient is φ = 412461000.

The previous prime is 1266845269. The next prime is 1266845299. The reversal of 1266845274 is 4725486621.

1266845274 is a `hidden beast` number, since 126 + 6 + 8 + 452 + 74 = 666.

It is a super-2 number, since 2×1266845274² = 3209793896512270152, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 817602 + ... + 819149.

It is an arithmetic number, because the mean of its divisors is an integer number (117027768).

Almost surely, 2^1266845274 is an apocalyptic number.

1266845274 is an abundant number, since it is smaller than the sum of its proper divisors (1541821158).

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

1266845274 is a wasteful number, since it uses less digits than its factorization.

1266845274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636802 (or 1636799 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 1266845274 is about 35592.7699680708. The cubic root of 1266845274 is about 1082.0347084623.

The spelling of 1266845274 in words is "one billion, two hundred sixty-six million, eight hundred forty-five thousand, two hundred seventy-four".