5218388 has 48 divisors (see below), whose sum is σ = 11652480. Its totient is φ = 1990656.

The previous prime is 5218361. The next prime is 5218391. The reversal of 5218388 is 8838125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8756 + ... + 9332.

It is an arithmetic number, because the mean of its divisors is an integer number (242760).

Almost surely, 2^5218388 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 5218388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5826240).

5218388 is an abundant number, since it is smaller than the sum of its proper divisors (6434092).

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

5218388 is a wasteful number, since it uses less digits than its factorization.

5218388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624 (or 622 counting only the distinct ones).

The product of its digits is 15360, while the sum is 35.

The square root of 5218388 is about 2284.3791279032. The cubic root of 5218388 is about 173.4517911498.

The spelling of 5218388 in words is "five million, two hundred eighteen thousand, three hundred eighty-eight".