1266104386 has 8 divisors (see below), whose sum is σ = 1934989884. Its totient is φ = 621107760.

The previous prime is 1266104381. The next prime is 1266104407. The reversal of 1266104386 is 6834016621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1265153761 + 950625 = 35569^2 + 975^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1266104381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5972085 + ... + 5972296.

Almost surely, 2^1266104386 is an apocalyptic number.

1266104386 is a deficient number, since it is larger than the sum of its proper divisors (668885498).

1266104386 is a wasteful number, since it uses less digits than its factorization.

1266104386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11944436.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 1266104386 is about 35582.3606018488. The cubic root of 1266104386 is about 1081.8237321951.

The spelling of 1266104386 in words is "one billion, two hundred sixty-six million, one hundred four thousand, three hundred eighty-six".