4520420 has 48 divisors (see below), whose sum is σ = 10257408. Its totient is φ = 1668480.

The previous prime is 4520407. The next prime is 4520431. The reversal of 4520420 is 240254.

It is a zygodrome in base 3.

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, 14102 + ... + 14418.

It is an arithmetic number, because the mean of its divisors is an integer number (213696).

Almost surely, 2^4520420 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 4520420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5128704).

4520420 is an abundant number, since it is smaller than the sum of its proper divisors (5736988).

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

4520420 is a wasteful number, since it uses less digits than its factorization.

4520420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 4520420 is about 2126.1279359436. The cubic root of 4520420 is about 165.3457091990.

Adding to 4520420 its reverse (240254), we get a palindrome (4760674).

The spelling of 4520420 in words is "four million, five hundred twenty thousand, four hundred twenty".