1280600000 has 168 divisors, whose sum is σ = 3353379120. Its totient is φ = 483840000.

The previous prime is 1280599993. The next prime is 1280600047. The reversal of 1280600000 is 60821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3799832 + ... + 3800168.

It is an arithmetic number, because the mean of its divisors is an integer number (19960590).

Almost surely, 2^1280600000 is an apocalyptic number.

1280600000 is a gapful number since it is divisible by the number (10) 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 1280600000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1676689560).

1280600000 is an abundant number, since it is smaller than the sum of its proper divisors (2072779120).

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

1280600000 is an frugal number, since it uses more digits than its factorization.

1280600000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1280600000 is about 35785.4719124954. The cubic root of 1280600000 is about 1085.9366712379.

Adding to 1280600000 its reverse (60821), we get a palindrome (1280660821).

The spelling of 1280600000 in words is "one billion, two hundred eighty million, six hundred thousand".