10281280 has 84 divisors (see below), whose sum is σ = 26128980. Its totient is φ = 3852288.

The previous prime is 10281269. The next prime is 10281287. The reversal of 10281280 is 8218201.

It can be written as a sum of positive squares in 2 ways, for example, as 2795584 + 7485696 = 1672^2 + 2736^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10281287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115476 + ... + 115564.

Almost surely, 2^10281280 is an apocalyptic number.

10281280 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 10281280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13064490).

10281280 is an abundant number, since it is smaller than the sum of its proper divisors (15847700).

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

10281280 is an equidigital number, since it uses as much as digits as its factorization.

10281280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 10281280 is about 3206.4435126788. The cubic root of 10281280 is about 217.4448179911. Note that the first 3 decimals are identical.

Adding to 10281280 its reverse (8218201), we get a palindrome (18499481).

The spelling of 10281280 in words is "ten million, two hundred eighty-one thousand, two hundred eighty".