4530540 has 144 divisors (see below), whose sum is σ = 15628032. Its totient is φ = 975744.

The previous prime is 4530529. The next prime is 4530577. The reversal of 4530540 is 450354.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67587 + ... + 67653.

It is an arithmetic number, because the mean of its divisors is an integer number (108528).

Almost surely, 2^4530540 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 4530540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7814016).

4530540 is an abundant number, since it is smaller than the sum of its proper divisors (11097492).

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

4530540 is a wasteful number, since it uses less digits than its factorization.

4530540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 4530540 is about 2128.5065186651. The cubic root of 4530540 is about 165.4690053706.

Adding to 4530540 its reverse (450354), we get a palindrome (4980894).

The spelling of 4530540 in words is "four million, five hundred thirty thousand, five hundred forty".