10881280 has 36 divisors (see below), whose sum is σ = 26067132. Its totient is φ = 4352000.

The previous prime is 10881263. The next prime is 10881287. The reversal of 10881280 is 8218801.

It can be written as a sum of positive squares in 2 ways, for example, as 2214144 + 8667136 = 1488^2 + 2944^2 .

It is not an unprimeable number, because it can be changed into a prime (10881287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2971 + ... + 5530.

It is an arithmetic number, because the mean of its divisors is an integer number (724087).

Almost surely, 2^10881280 is an apocalyptic number.

10881280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10881280 is an abundant number, since it is smaller than the sum of its proper divisors (15185852).

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

10881280 is an frugal number, since it uses more digits than its factorization.

10881280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8522 (or 8508 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 10881280 is about 3298.6785232878. The cubic root of 10881280 is about 221.5950195894.

The spelling of 10881280 in words is "ten million, eight hundred eighty-one thousand, two hundred eighty".