5718438 has 40 divisors (see below), whose sum is σ = 13982760. Its totient is φ = 1732320.

The previous prime is 5718437. The next prime is 5718439. The reversal of 5718438 is 8348175.

5718438 is a `hidden beast` number, since 571 + 84 + 3 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (5718437) and next prime (5718439).

It is a d-powerful number, because it can be written as 5⁷ + 7⁷ + 1 + 8 + 4⁵ + 3¹⁴ + 8⁵ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5718431) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 178 + ... + 3386.

It is an arithmetic number, because the mean of its divisors is an integer number (349569).

Almost surely, 2^5718438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5718438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6991380).

5718438 is an abundant number, since it is smaller than the sum of its proper divisors (8264322).

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

5718438 is a wasteful number, since it uses less digits than its factorization.

5718438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234 (or 3225 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 5718438 is about 2391.3255738188. The cubic root of 5718438 is about 178.8240002016.

It can be divided in two parts, 571 and 8438, that added together give a palindrome (9009).

The spelling of 5718438 in words is "five million, seven hundred eighteen thousand, four hundred thirty-eight".