394289 has 16 divisors (see below), whose sum is σ = 491520. Its totient is φ = 308880.

The previous prime is 394271. The next prime is 394291. The reversal of 394289 is 982493.

It is a cyclic number.

It is not a de Polignac number, because 394289 - 2¹² = 390193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4952 + ... + 5030.

It is an arithmetic number, because the mean of its divisors is an integer number (30720).

2³⁹⁴²⁸⁹ is an apocalyptic number.

It is an amenable number.

394289 is a deficient number, since it is larger than the sum of its proper divisors (97231).

394289 is a wasteful number, since it uses less digits than its factorization.

394289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140.

The product of its digits is 15552, while the sum is 35.

The square root of 394289 is about 627.9243585019. The cubic root of 394289 is about 73.3282893684.

The spelling of 394289 in words is "three hundred ninety-four thousand, two hundred eighty-nine".