1266030444 has 36 divisors (see below), whose sum is σ = 3436369944. Its totient is φ = 361722816.

The previous prime is 1266030433. The next prime is 1266030449. The reversal of 1266030444 is 4440306621.

It is not an unprimeable number, because it can be changed into a prime (1266030449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1075969 + ... + 1077144.

Almost surely, 2^1266030444 is an apocalyptic number.

1266030444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1266030444 is an abundant number, since it is smaller than the sum of its proper divisors (2170339500).

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

1266030444 is a wasteful number, since it uses less digits than its factorization.

1266030444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153134 (or 2153125 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 1266030444 is about 35581.3215606166. The cubic root of 1266030444 is about 1081.8026718548.

The spelling of 1266030444 in words is "one billion, two hundred sixty-six million, thirty thousand, four hundred forty-four".