378834 has 16 divisors (see below), whose sum is σ = 766272. Its totient is φ = 124848.

The previous prime is 378823. The next prime is 378869. The reversal of 378834 is 438873.

It is a junction number, because it is equal to n+sod(n) for n = 378795 and 378804.

It is an unprimeable number.

378834 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 in 7 ways as a sum of consecutive naturals, for example, 312 + ... + 924.

It is an arithmetic number, because the mean of its divisors is an integer number (47892).

2³⁷⁸⁸³⁴ is an apocalyptic number.

378834 is an abundant number, since it is smaller than the sum of its proper divisors (387438).

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

378834 is a wasteful number, since it uses less digits than its factorization.

378834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721.

The product of its digits is 16128, while the sum is 33.

The square root of 378834 is about 615.4949228060. The cubic root of 378834 is about 72.3574050195.

The spelling of 378834 in words is "three hundred seventy-eight thousand, eight hundred thirty-four".