1276090496 has 16 divisors (see below), whose sum is σ = 2542211790. Its totient is φ = 638045184.

The previous prime is 1276090493. The next prime is 1276090513. The reversal of 1276090496 is 6940906721.

It can be written as a sum of positive squares in only one way, i.e., 1248632896 + 27457600 = 35336^2 + 5240^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (1276090493) by changing a digit.

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 as a sum of consecutive naturals, namely, 4984601 + ... + 4984856.

Almost surely, 2^1276090496 is an apocalyptic number.

1276090496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1276090496 is a deficient number, since it is larger than the sum of its proper divisors (1266121294).

1276090496 is an frugal number, since it uses more digits than its factorization.

1276090496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9969471 (or 9969459 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 1276090496 is about 35722.4088773420. The cubic root of 1276090496 is about 1084.6604998667.

The spelling of 1276090496 in words is "one billion, two hundred seventy-six million, ninety thousand, four hundred ninety-six".