5222420 has 54 divisors (see below), whose sum is σ = 12934782. Its totient is φ = 1766016.

The previous prime is 5222411. The next prime is 5222423. The reversal of 5222420 is 242225.

It can be written as a sum of positive squares in 3 ways, for example, as 753424 + 4468996 = 868^2 + 2114^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5222423) 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, 71504 + ... + 71576.

It is an arithmetic number, because the mean of its divisors is an integer number (239533).

Almost surely, 2^5222420 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 5222420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6467391).

5222420 is an abundant number, since it is smaller than the sum of its proper divisors (7712362).

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

5222420 is a wasteful number, since it uses less digits than its factorization.

5222420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 87 counting only the distinct ones).

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

The square root of 5222420 is about 2285.2614730048. The cubic root of 5222420 is about 173.4964522967.

Multiplying 5222420 by its product of nonzero digits (320), we get a square (1671174400 = 40880²).

Adding to 5222420 its reverse (242225), we get a palindrome (5464645).

The spelling of 5222420 in words is "five million, two hundred twenty-two thousand, four hundred twenty".