1266087938 has 8 divisors (see below), whose sum is σ = 1900120188. Its totient is φ = 632714544.

The previous prime is 1266087917. The next prime is 1266087959. The reversal of 1266087938 is 8397806621.

It is an interprime number because it is at equal distance from previous prime (1266087917) and next prime (1266087959).

It can be written as a sum of positive squares in 2 ways, for example, as 1181503129 + 84584809 = 34373^2 + 9197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159881 + ... + 167612.

Almost surely, 2^1266087938 is an apocalyptic number.

1266087938 is a deficient number, since it is larger than the sum of its proper divisors (634032250).

1266087938 is a wasteful number, since it uses less digits than its factorization.

1266087938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329428.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 1266087938 is about 35582.1294753420. The cubic root of 1266087938 is about 1081.8190475067.

The spelling of 1266087938 in words is "one billion, two hundred sixty-six million, eighty-seven thousand, nine hundred thirty-eight".