394378 has 8 divisors (see below), whose sum is σ = 594468. Its totient is φ = 196224.

The previous prime is 394369. The next prime is 394393. The reversal of 394378 is 873493.

It can be written as a sum of positive squares in 2 ways, for example, as 380689 + 13689 = 617^2 + 117^2 .

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

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, 250 + ... + 922.

2³⁹⁴³⁷⁸ is an apocalyptic number.

394378 is a deficient number, since it is larger than the sum of its proper divisors (200090).

394378 is a wasteful number, since it uses less digits than its factorization.

394378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968.

The product of its digits is 18144, while the sum is 34.

The square root of 394378 is about 627.9952229118. The cubic root of 394378 is about 73.3338062412. Note that the first 3 decimals are identical.

The spelling of 394378 in words is "three hundred ninety-four thousand, three hundred seventy-eight".