8250320 has 40 divisors (see below), whose sum is σ = 20660136. Its totient is φ = 3045888.

The previous prime is 8250317. The next prime is 8250323. The reversal of 8250320 is 230528.

It is an interprime number because it is at equal distance from previous prime (8250317) and next prime (8250323).

It can be written as a sum of positive squares in 4 ways, for example, as 1936 + 8248384 = 44^2 + 2872^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 8250292 and 8250301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8250323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2927 + ... + 5006.

Almost surely, 2^8250320 is an apocalyptic number.

8250320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8250320 is an abundant number, since it is smaller than the sum of its proper divisors (12409816).

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

8250320 is a wasteful number, since it uses less digits than its factorization.

8250320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7959 (or 7953 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 8250320 is about 2872.3370275788. The cubic root of 8250320 is about 202.0646135161.

Adding to 8250320 its reverse (230528), we get a palindrome (8480848).

The spelling of 8250320 in words is "eight million, two hundred fifty thousand, three hundred twenty".