5220420 has 48 divisors (see below), whose sum is σ = 14732928. Its totient is φ = 1381120.

The previous prime is 5220409. The next prime is 5220427. The reversal of 5220420 is 240225.

5220420 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 5220420.

It is not an unprimeable number, because it can be changed into a prime (5220427) 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, 9760 + ... + 10280.

It is an arithmetic number, because the mean of its divisors is an integer number (306936).

Almost surely, 2^5220420 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 5220420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7366464).

5220420 is an abundant number, since it is smaller than the sum of its proper divisors (9512508).

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

5220420 is a wasteful number, since it uses less digits than its factorization.

5220420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 5220420 is about 2284.8238444134. The cubic root of 5220420 is about 173.4743018244.

Adding to 5220420 its reverse (240225), we get a palindrome (5460645).

The spelling of 5220420 in words is "five million, two hundred twenty thousand, four hundred twenty".