394480 has 20 divisors (see below), whose sum is σ = 917352. Its totient is φ = 157760.

The previous prime is 394453. The next prime is 394481. The reversal of 394480 is 84493.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×394480² = 311228940800, which contains 22 as substring.

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2386 + ... + 2545.

2³⁹⁴⁴⁸⁰ is an apocalyptic number.

It is an amenable number.

394480 is an abundant number, since it is smaller than the sum of its proper divisors (522872).

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

394480 is a wasteful number, since it uses less digits than its factorization.

394480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944 (or 4938 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 394480 is about 628.0764284703. The cubic root of 394480 is about 73.3401279287.

The spelling of 394480 in words is "three hundred ninety-four thousand, four hundred eighty".