5218424 has 32 divisors (see below), whose sum is σ = 10368000. Its totient is φ = 2457312.

The previous prime is 5218417. The next prime is 5218441. The reversal of 5218424 is 4248125.

5218424 = 217² + 218² + ... + 295².

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 5218393 and 5218402.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 14357 + ... + 14715.

It is an arithmetic number, because the mean of its divisors is an integer number (324000).

Almost surely, 2^5218424 is an apocalyptic number.

It is an amenable number.

5218424 is a deficient number, since it is larger than the sum of its proper divisors (5149576).

5218424 is a wasteful number, since it uses less digits than its factorization.

5218424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 463 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 5218424 is about 2284.3870074924. The cubic root of 5218424 is about 173.4521900119.

Subtracting from 5218424 its reverse (4248125), we obtain a cube (970299 = 99³).

The spelling of 5218424 in words is "five million, two hundred eighteen thousand, four hundred twenty-four".