618838 has 16 divisors (see below), whose sum is σ = 1057536. Its totient is φ = 268840.

The previous prime is 618833. The next prime is 618841. The reversal of 618838 is 838816.

618838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618833) by changing a digit.

618838 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106 + ... + 1117.

It is an arithmetic number, because the mean of its divisors is an integer number (66096).

2⁶¹⁸⁸³⁸ is an apocalyptic number.

618838 is a deficient number, since it is larger than the sum of its proper divisors (438698).

618838 is a wasteful number, since it uses less digits than its factorization.

618838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259.

The product of its digits is 9216, while the sum is 34.

The square root of 618838 is about 786.6625706108. The cubic root of 618838 is about 85.2168855715.

It can be divided in two parts, 6188 and 38, that added together give a palindrome (6226).

The spelling of 618838 in words is "six hundred eighteen thousand, eight hundred thirty-eight".