8260240 has 40 divisors (see below), whose sum is σ = 19463040. Its totient is φ = 3259776.

The previous prime is 8260223. The next prime is 8260261. The reversal of 8260240 is 420628.

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

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, 5667 + ... + 6973.

It is an arithmetic number, because the mean of its divisors is an integer number (486576).

Almost surely, 2^8260240 is an apocalyptic number.

8260240 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 8260240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9731520).

8260240 is an abundant number, since it is smaller than the sum of its proper divisors (11202800).

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

8260240 is a wasteful number, since it uses less digits than its factorization.

8260240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399 (or 1393 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 8260240 is about 2874.0633256767. The cubic root of 8260240 is about 202.1455670679.

Adding to 8260240 its reverse (420628), we get a palindrome (8680868).

The spelling of 8260240 in words is "eight million, two hundred sixty thousand, two hundred forty".