838340 has 24 divisors (see below), whose sum is σ = 1778112. Its totient is φ = 332000.

The previous prime is 838249. The next prime is 838349. The reversal of 838340 is 43838.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (838349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3215 + ... + 3465.

It is an arithmetic number, because the mean of its divisors is an integer number (74088).

2⁸³⁸³⁴⁰ is an apocalyptic number.

It is an amenable number.

838340 is an abundant number, since it is smaller than the sum of its proper divisors (939772).

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

838340 is a wasteful number, since it uses less digits than its factorization.

838340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 838340 is about 915.6090868924. The cubic root of 838340 is about 94.2916848727.

The spelling of 838340 in words is "eight hundred thirty-eight thousand, three hundred forty".