8250240 has 64 divisors (see below), whose sum is σ = 26303760. Its totient is φ = 2199552.

The previous prime is 8250191. The next prime is 8250251. The reversal of 8250240 is 420528.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229 + ... + 4068.

Almost surely, 2^8250240 is an apocalyptic number.

8250240 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 8250240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13151880).

8250240 is an abundant number, since it is smaller than the sum of its proper divisors (18053520).

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

8250240 is a wasteful number, since it uses less digits than its factorization.

8250240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319 (or 4307 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 8250240 is about 2872.3231016026. The cubic root of 8250240 is about 202.0639604012.

Adding to 8250240 its reverse (420528), we get a palindrome (8670768).

The spelling of 8250240 in words is "eight million, two hundred fifty thousand, two hundred forty".