838436 has 12 divisors (see below), whose sum is σ = 1476720. Its totient is φ = 416520.

The previous prime is 838429. The next prime is 838441. The reversal of 838436 is 634838.

It is an unprimeable number.

838436 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 3 ways as a sum of consecutive naturals, for example, 131 + ... + 1301.

It is an arithmetic number, because the mean of its divisors is an integer number (123060).

2⁸³⁸⁴³⁶ is an apocalyptic number.

It is an amenable number.

838436 is a deficient number, since it is larger than the sum of its proper divisors (638284).

838436 is a wasteful number, since it uses less digits than its factorization.

838436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354 (or 1352 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 838436 is about 915.6615095110. The cubic root of 838436 is about 94.2952839122.

The spelling of 838436 in words is "eight hundred thirty-eight thousand, four hundred thirty-six".