5421224 has 16 divisors (see below), whose sum is σ = 10259700. Its totient is φ = 2685312.

The previous prime is 5421209. The next prime is 5421263. The reversal of 5421224 is 4221245.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5152900 + 268324 = 2270^2 + 518^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5421196 and 5421205.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2237 + ... + 3980.

Almost surely, 2^5421224 is an apocalyptic number.

It is an amenable number.

5421224 is a deficient number, since it is larger than the sum of its proper divisors (4838476).

5421224 is a wasteful number, since it uses less digits than its factorization.

5421224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6332 (or 6328 counting only the distinct ones).

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

The square root of 5421224 is about 2328.3522070340. The cubic root of 5421224 is about 175.6706132710.

Adding to 5421224 its reverse (4221245), we get a palindrome (9642469).

The spelling of 5421224 in words is "five million, four hundred twenty-one thousand, two hundred twenty-four".