1280678098 has 16 divisors (see below), whose sum is σ = 2202381504. Its totient is φ = 547128720.

The previous prime is 1280678093. The next prime is 1280678129. The reversal of 1280678098 is 8908760821.

It is not an unprimeable number, because it can be changed into a prime (1280678093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139848 + ... + 148723.

It is an arithmetic number, because the mean of its divisors is an integer number (137648844).

Almost surely, 2^1280678098 is an apocalyptic number.

1280678098 is a deficient number, since it is larger than the sum of its proper divisors (921703406).

1280678098 is a wasteful number, since it uses less digits than its factorization.

1280678098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288897.

The product of its (nonzero) digits is 387072, while the sum is 49.

The square root of 1280678098 is about 35786.5630928705. The cubic root of 1280678098 is about 1085.9587462439.

The spelling of 1280678098 in words is "one billion, two hundred eighty million, six hundred seventy-eight thousand, ninety-eight".