838218 has 8 divisors (see below), whose sum is σ = 1676448. Its totient is φ = 279404.

The previous prime is 838207. The next prime is 838247. The reversal of 838218 is 812838.

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

838218 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69846 + ... + 69857.

It is an arithmetic number, because the mean of its divisors is an integer number (209556).

2⁸³⁸²¹⁸ is an apocalyptic number.

838218 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.

838218 is a wasteful number, since it uses less digits than its factorization.

838218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139708.

The product of its digits is 3072, while the sum is 30.

The square root of 838218 is about 915.5424621502. The cubic root of 838218 is about 94.2871106969.

It can be divided in two parts, 8 and 38218, that added together give a triangular number (38226 = T₂₇₆).

The spelling of 838218 in words is "eight hundred thirty-eight thousand, two hundred eighteen".