8238540 has 96 divisors (see below), whose sum is σ = 25147584. Its totient is φ = 2007040.

The previous prime is 8238493. The next prime is 8238541. The reversal of 8238540 is 458328.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 8238498 and 8238507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8238541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41722 + ... + 41918.

It is an arithmetic number, because the mean of its divisors is an integer number (261954).

Almost surely, 2^8238540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8238540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12573792).

8238540 is an abundant number, since it is smaller than the sum of its proper divisors (16909044).

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

8238540 is a wasteful number, since it uses less digits than its factorization.

8238540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 8238540 is about 2870.2857000654. The cubic root of 8238540 is about 201.9683968466.

It can be divided in two parts, 8238 and 540, that added together give a palindrome (8778).

The spelling of 8238540 in words is "eight million, two hundred thirty-eight thousand, five hundred forty".