5221424 has 30 divisors (see below), whose sum is σ = 10960236. Its totient is φ = 2408640.

The previous prime is 5221399. The next prime is 5221451. The reversal of 5221424 is 4241225.

It is a happy number.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5221396 and 5221405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1739 + ... + 3669.

Almost surely, 2^5221424 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 5221424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5480118).

5221424 is an abundant number, since it is smaller than the sum of its proper divisors (5738812).

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

5221424 is a wasteful number, since it uses less digits than its factorization.

5221424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965 (or 1946 counting only the distinct ones).

The product of its digits is 640, while the sum is 20.

The square root of 5221424 is about 2285.0435444429. The cubic root of 5221424 is about 173.4854220685.

Adding to 5221424 its reverse (4241225), we get a palindrome (9462649).

The spelling of 5221424 in words is "five million, two hundred twenty-one thousand, four hundred twenty-four".