1276480278 has 24 divisors (see below), whose sum is σ = 2766470616. Its totient is φ = 425376000.

The previous prime is 1276480277. The next prime is 1276480297. The reversal of 1276480278 is 8720846721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276480277) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 79033 + ... + 93803.

It is an arithmetic number, because the mean of its divisors is an integer number (115269609).

Almost surely, 2^1276480278 is an apocalyptic number.

1276480278 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1276480278 is an abundant number, since it is smaller than the sum of its proper divisors (1489990338).

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

1276480278 is a wasteful number, since it uses less digits than its factorization.

1276480278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19580 (or 19577 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 1276480278 is about 35727.8641679012. The cubic root of 1276480278 is about 1084.7709251856.

The spelling of 1276480278 in words is "one billion, two hundred seventy-six million, four hundred eighty thousand, two hundred seventy-eight".