1280680076 has 48 divisors (see below), whose sum is σ = 2472050784. Its totient is φ = 576930816.

The previous prime is 1280680069. The next prime is 1280680097. The reversal of 1280680076 is 6700860821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392066 + ... + 395318.

It is an arithmetic number, because the mean of its divisors is an integer number (51501058).

Almost surely, 2^1280680076 is an apocalyptic number.

It is an amenable number.

1280680076 is a deficient number, since it is larger than the sum of its proper divisors (1191370708).

1280680076 is a wasteful number, since it uses less digits than its factorization.

1280680076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3450 (or 3448 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 1280680076 is about 35786.5907289309. The cubic root of 1280680076 is about 1085.9593053293.

The spelling of 1280680076 in words is "one billion, two hundred eighty million, six hundred eighty thousand, seventy-six".