8115280 has 60 divisors (see below), whose sum is σ = 19984212. Its totient is φ = 3064320.

The previous prime is 8115277. The next prime is 8115293. The reversal of 8115280 is 825118.

It can be written as a sum of positive squares in 2 ways, for example, as 4210704 + 3904576 = 2052^2 + 1976^2 .

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28740 + ... + 29020.

Almost surely, 2^8115280 is an apocalyptic number.

8115280 is a gapful number since it is divisible by the number (80) 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 8115280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9992106).

8115280 is an abundant number, since it is smaller than the sum of its proper divisors (11868932).

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

8115280 is a wasteful number, since it uses less digits than its factorization.

8115280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 8115280 is about 2848.7330517267. The cubic root of 8115280 is about 200.9560888541.

The spelling of 8115280 in words is "eight million, one hundred fifteen thousand, two hundred eighty".