5518938 has 8 divisors (see below), whose sum is σ = 11037888. Its totient is φ = 1839644.

The previous prime is 5518937. The next prime is 5518951. The reversal of 5518938 is 8398155.

It is a sphenic number, since it is the product of 3 distinct primes.

5518938 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 5518896 and 5518905.

It is not an unprimeable number, because it can be changed into a prime (5518937) 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 3 ways as a sum of consecutive naturals, for example, 459906 + ... + 459917.

It is an arithmetic number, because the mean of its divisors is an integer number (1379736).

Almost surely, 2^5518938 is an apocalyptic number.

5518938 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

5518938 is a wasteful number, since it uses less digits than its factorization.

5518938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919828.

The product of its digits is 43200, while the sum is 39.

The square root of 5518938 is about 2349.2420054137. The cubic root of 5518938 is about 176.7197838777.

It can be divided in two parts, 551893 and 8, that multiplied together give a palindrome (4415144).

The spelling of 5518938 in words is "five million, five hundred eighteen thousand, nine hundred thirty-eight".