4513520 has 80 divisors (see below), whose sum is σ = 11999232. Its totient is φ = 1562880.

The previous prime is 4513513. The next prime is 4513549. The reversal of 4513520 is 253154.

4513520 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4513492 and 4513501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20129 + ... + 20351.

Almost surely, 2^4513520 is an apocalyptic number.

4513520 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 4513520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5999616).

4513520 is an abundant number, since it is smaller than the sum of its proper divisors (7485712).

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

4513520 is a wasteful number, since it uses less digits than its factorization.

4513520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 4513520 is about 2124.5046481474. The cubic root of 4513520 is about 165.2615380843.

Adding to 4513520 its reverse (253154), we get a palindrome (4766674).

It can be divided in two parts, 45 and 13520, that multiplied together give a square (608400 = 780²).

The spelling of 4513520 in words is "four million, five hundred thirteen thousand, five hundred twenty".