1266893090 has 16 divisors (see below), whose sum is σ = 2333441088. Its totient is φ = 494972016.

The previous prime is 1266893051. The next prime is 1266893123. The reversal of 1266893090 is 903986621.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472702 + ... + 1473561.

It is an arithmetic number, because the mean of its divisors is an integer number (145840068).

Almost surely, 2^1266893090 is an apocalyptic number.

1266893090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1266893090 is a deficient number, since it is larger than the sum of its proper divisors (1066547998).

1266893090 is a wasteful number, since it uses less digits than its factorization.

1266893090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946313.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 1266893090 is about 35593.4416711843. The cubic root of 1266893090 is about 1082.0483217851.

The spelling of 1266893090 in words is "one billion, two hundred sixty-six million, eight hundred ninety-three thousand, ninety".