394490 has 16 divisors (see below), whose sum is σ = 718848. Its totient is φ = 155856.

The previous prime is 394489. The next prime is 394501. The reversal of 394490 is 94493.

It is a happy number.

It is an Ulam number.

It is a zygodrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 839 + ... + 1221.

It is an arithmetic number, because the mean of its divisors is an integer number (44928).

2³⁹⁴⁴⁹⁰ is an apocalyptic number.

394490 is a deficient number, since it is larger than the sum of its proper divisors (324358).

394490 is a wasteful number, since it uses less digits than its factorization.

394490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 394490 is about 628.0843892344. The cubic root of 394490 is about 73.3407476434.

The spelling of 394490 in words is "three hundred ninety-four thousand, four hundred ninety".