5230440 has 128 divisors (see below), whose sum is σ = 18144000. Its totient is φ = 1338624.

The previous prime is 5230439. The next prime is 5230447. The reversal of 5230440 is 440325.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (5230447) 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, 31237 + ... + 31403.

It is an arithmetic number, because the mean of its divisors is an integer number (141750).

Almost surely, 2^5230440 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 5230440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9072000).

5230440 is an abundant number, since it is smaller than the sum of its proper divisors (12913560).

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

5230440 is a wasteful number, since it uses less digits than its factorization.

5230440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 5230440 is about 2287.0155224659. The cubic root of 5230440 is about 173.5852189274.

Adding to 5230440 its reverse (440325), we get a palindrome (5670765).

The spelling of 5230440 in words is "five million, two hundred thirty thousand, four hundred forty".