8280320 has 36 divisors (see below), whose sum is σ = 19837020. Its totient is φ = 3311616.

The previous prime is 8280289. The next prime is 8280331. The reversal of 8280320 is 230828.

It can be written as a sum of positive squares in 2 ways, for example, as 1478656 + 6801664 = 1216^2 + 2608^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1955 + ... + 4514.

Almost surely, 2^8280320 is an apocalyptic number.

8280320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8280320 is an abundant number, since it is smaller than the sum of its proper divisors (11556700).

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

8280320 is an equidigital number, since it uses as much as digits as its factorization.

8280320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6490 (or 6476 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 8280320 is about 2877.5545172942. The cubic root of 8280320 is about 202.3092345609.

The spelling of 8280320 in words is "eight million, two hundred eighty thousand, three hundred twenty".