1276944412 has 24 divisors (see below), whose sum is σ = 2247154112. Its totient is φ = 634910400.

The previous prime is 1276944401. The next prime is 1276944437. The reversal of 1276944412 is 2144496721.

It is a congruent 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, 923962 + ... + 925342.

Almost surely, 2^1276944412 is an apocalyptic number.

It is an amenable number.

1276944412 is a deficient number, since it is larger than the sum of its proper divisors (970209700).

1276944412 is a wasteful number, since it uses less digits than its factorization.

1276944412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509 (or 2507 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 1276944412 is about 35734.3589840366. The cubic root of 1276944412 is about 1084.9023851247.

The spelling of 1276944412 in words is "one billion, two hundred seventy-six million, nine hundred forty-four thousand, four hundred twelve".