1276106272 has 96 divisors (see below), whose sum is σ = 3033676800. Its totient is φ = 516181248.

The previous prime is 1276106269. The next prime is 1276106303. The reversal of 1276106272 is 2726016721.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1868043 + ... + 1868725.

It is an arithmetic number, because the mean of its divisors is an integer number (31600800).

Almost surely, 2^1276106272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1276106272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1516838400).

1276106272 is an abundant number, since it is smaller than the sum of its proper divisors (1757570528).

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

1276106272 is a wasteful number, since it uses less digits than its factorization.

1276106272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 1276106272 is about 35722.6296904357. The cubic root of 1276106272 is about 1084.6649696473.

The spelling of 1276106272 in words is "one billion, two hundred seventy-six million, one hundred six thousand, two hundred seventy-two".