394738 has 4 divisors (see below), whose sum is σ = 592110. Its totient is φ = 197368.

The previous prime is 394733. The next prime is 394739. The reversal of 394738 is 837493.

394738 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 267289 + 127449 = 517^2 + 357^2 .

It is not an unprimeable number, because it can be changed into a prime (394733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98683 + ... + 98686.

2³⁹⁴⁷³⁸ is an apocalyptic number.

394738 is a deficient number, since it is larger than the sum of its proper divisors (197372).

394738 is a wasteful number, since it uses less digits than its factorization.

394738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197371.

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

The square root of 394738 is about 628.2817839155. The cubic root of 394738 is about 73.3561132169.

The spelling of 394738 in words is "three hundred ninety-four thousand, seven hundred thirty-eight".