1276336340 has 24 divisors (see below), whose sum is σ = 2766769152. Its totient is φ = 494065440.

The previous prime is 1276336337. The next prime is 1276336351. The reversal of 1276336340 is 436336721.

It is a self number, because there is not a number n which added to its sum of digits gives 1276336340.

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 7 ways as a sum of consecutive naturals, for example, 1028684 + ... + 1029923.

It is an arithmetic number, because the mean of its divisors is an integer number (115282048).

Almost surely, 2^1276336340 is an apocalyptic number.

1276336340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1276336340 is an abundant number, since it is smaller than the sum of its proper divisors (1490432812).

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

1276336340 is a wasteful number, since it uses less digits than its factorization.

1276336340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058647 (or 2058645 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 35.

The square root of 1276336340 is about 35725.8497449676. The cubic root of 1276336340 is about 1084.7301501395.

The spelling of 1276336340 in words is "one billion, two hundred seventy-six million, three hundred thirty-six thousand, three hundred forty".