838388 has 6 divisors (see below), whose sum is σ = 1467186. Its totient is φ = 419192.

The previous prime is 838379. The next prime is 838391. The reversal of 838388 is 883838.

It can be written as a sum of positive squares in only one way, i.e., 824464 + 13924 = 908^2 + 118^2 .

It is a congruent number.

It is an unprimeable number.

838388 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 as a sum of consecutive naturals, namely, 104795 + ... + 104802.

It is an arithmetic number, because the mean of its divisors is an integer number (244531).

2⁸³⁸³⁸⁸ is an apocalyptic number.

It is an amenable number.

838388 is a deficient number, since it is larger than the sum of its proper divisors (628798).

838388 is a wasteful number, since it uses less digits than its factorization.

838388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209601 (or 209599 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 838388 is about 915.6352985769. The cubic root of 838388 is about 94.2934844268.

The spelling of 838388 in words is "eight hundred thirty-eight thousand, three hundred eighty-eight".