5238840 has 64 divisors (see below), whose sum is σ = 15876000. Its totient is φ = 1382912.

The previous prime is 5238829. The next prime is 5238847. The reversal of 5238840 is 488325.

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 = 5238798 and 5238807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5238847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17734 + ... + 18026.

Almost surely, 2^5238840 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 5238840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7938000).

5238840 is an abundant number, since it is smaller than the sum of its proper divisors (10637160).

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

5238840 is a wasteful number, since it uses less digits than its factorization.

5238840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 452 counting only the distinct ones).

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

The square root of 5238840 is about 2288.8512402513. The cubic root of 5238840 is about 173.6780942218.

The spelling of 5238840 in words is "five million, two hundred thirty-eight thousand, eight hundred forty".