8256320 has 28 divisors (see below), whose sum is σ = 19661124. Its totient is φ = 3302400.

The previous prime is 8256307. The next prime is 8256337. The reversal of 8256320 is 236528.

It can be written as a sum of positive squares in 2 ways, for example, as 3625216 + 4631104 = 1904^2 + 2152^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8256320.

It is a congruent number.

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, 12581 + ... + 13220.

It is an arithmetic number, because the mean of its divisors is an integer number (702183).

Almost surely, 2^8256320 is an apocalyptic number.

8256320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8256320 is an abundant number, since it is smaller than the sum of its proper divisors (11404804).

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

8256320 is a wasteful number, since it uses less digits than its factorization.

8256320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25818 (or 25808 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 8256320 is about 2873.3812834359. The cubic root of 8256320 is about 202.1135851075.

The spelling of 8256320 in words is "eight million, two hundred fifty-six thousand, three hundred twenty".