1280540096 has 168 divisors, whose sum is σ = 3020921568. Its totient is φ = 536166400.

The previous prime is 1280540087. The next prime is 1280540119. The reversal of 1280540096 is 6900450821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9346940 + ... + 9347076.

It is an arithmetic number, because the mean of its divisors is an integer number (17981676).

Almost surely, 2^1280540096 is an apocalyptic number.

1280540096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1280540096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1510460784).

1280540096 is an abundant number, since it is smaller than the sum of its proper divisors (1740381472).

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

1280540096 is a wasteful number, since it uses less digits than its factorization.

1280540096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1280540096 is about 35784.6349150023. The cubic root of 1280540096 is about 1085.9197382990.

The spelling of 1280540096 in words is "one billion, two hundred eighty million, five hundred forty thousand, ninety-six".