5243540 has 24 divisors (see below), whose sum is σ = 11491200. Its totient is φ = 2006048.

The previous prime is 5243527. The next prime is 5243543. The reversal of 5243540 is 453425.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5243543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5240 + ... + 6159.

It is an arithmetic number, because the mean of its divisors is an integer number (478800).

Almost surely, 2^5243540 is an apocalyptic number.

It is an amenable number.

5243540 is an abundant number, since it is smaller than the sum of its proper divisors (6247660).

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

5243540 is a wasteful number, since it uses less digits than its factorization.

5243540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11431 (or 11429 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 5243540 is about 2289.8777259932. The cubic root of 5243540 is about 173.7300168520.

Adding to 5243540 its reverse (453425), we get a palindrome (5696965).

The spelling of 5243540 in words is "five million, two hundred forty-three thousand, five hundred forty".