4520544 has 108 divisors (see below), whose sum is σ = 14263452. Its totient is φ = 1249920.

The previous prime is 4520543. The next prime is 4520563. The reversal of 4520544 is 4450254.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4520543) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 145809 + ... + 145839.

It is an arithmetic number, because the mean of its divisors is an integer number (132069).

Almost surely, 2^4520544 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 4520544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7131726).

4520544 is an abundant number, since it is smaller than the sum of its proper divisors (9742908).

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

4520544 is a wasteful number, since it uses less digits than its factorization.

4520544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 4520544 is about 2126.1570967358. The cubic root of 4520544 is about 165.3472210556.

Multiplying 4520544 by its sum of digits (24), we get a square (108493056 = 10416²).

4520544 divided by its sum of digits (24) gives a square (188356 = 434²).

Adding to 4520544 its reverse (4450254), we get a palindrome (8970798).

The spelling of 4520544 in words is "four million, five hundred twenty thousand, five hundred forty-four".