4542520 has 64 divisors (see below), whose sum is σ = 11088000. Its totient is φ = 1669248.

The previous prime is 4542511. The next prime is 4542521. The reversal of 4542520 is 252454.

It is a junction number, because it is equal to n+sod(n) for n = 4542491 and 4542500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4542521) 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, 32611 + ... + 32749.

It is an arithmetic number, because the mean of its divisors is an integer number (173250).

Almost surely, 2^4542520 is an apocalyptic number.

4542520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4542520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5544000).

4542520 is an abundant number, since it is smaller than the sum of its proper divisors (6545480).

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

4542520 is a wasteful number, since it uses less digits than its factorization.

4542520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 4542520 is about 2131.3188405304. The cubic root of 4542520 is about 165.6147255997.

Adding to 4542520 its reverse (252454), we get a palindrome (4794974).

The spelling of 4542520 in words is "four million, five hundred forty-two thousand, five hundred twenty".