1280898796 has 96 divisors (see below), whose sum is σ = 2647572480. Its totient is φ = 538137600.

The previous prime is 1280898793. The next prime is 1280898799. The reversal of 1280898796 is 6978980821.

It is an interprime number because it is at equal distance from previous prime (1280898793) and next prime (1280898799).

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a self number, because there is not a number n which added to its sum of digits gives 1280898796.

It is not an unprimeable number, because it can be changed into a prime (1280898793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1405581 + ... + 1406491.

It is an arithmetic number, because the mean of its divisors is an integer number (27578880).

Almost surely, 2^1280898796 is an apocalyptic number.

It is an amenable number.

1280898796 is an abundant number, since it is smaller than the sum of its proper divisors (1366673684).

1280898796 is a wasteful number, since it uses less digits than its factorization.

1280898796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 58.

The square root of 1280898796 is about 35789.6464916881. The cubic root of 1280898796 is about 1086.0211233960.

The spelling of 1280898796 in words is "one billion, two hundred eighty million, eight hundred ninety-eight thousand, seven hundred ninety-six".