1276466268 has 192 divisors, whose sum is σ = 3836851200. Its totient is φ = 330126720.

The previous prime is 1276466251. The next prime is 1276466281. The reversal of 1276466268 is 8626646721.

It is a super-2 number, since 2×1276466268² = 3258732266683695648, which contains 22 as substring.

Its product of digits (1161216) is a multiple of the sum of its prime divisors (256).

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 5478280 + ... + 5478512.

It is an arithmetic number, because the mean of its divisors is an integer number (19983600).

Almost surely, 2^1276466268 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 1276466268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1918425600).

1276466268 is an abundant number, since it is smaller than the sum of its proper divisors (2560384932).

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

1276466268 is a wasteful number, since it uses less digits than its factorization.

1276466268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 256 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The square root of 1276466268 is about 35727.6681019067. The cubic root of 1276466268 is about 1084.7669565393.

The spelling of 1276466268 in words is "one billion, two hundred seventy-six million, four hundred sixty-six thousand, two hundred sixty-eight".