394456 has 8 divisors (see below), whose sum is σ = 739620. Its totient is φ = 197224.

The previous prime is 394453. The next prime is 394481. The reversal of 394456 is 654493.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394453) 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 as a sum of consecutive naturals, namely, 24646 + ... + 24661.

2³⁹⁴⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

394456 is a deficient number, since it is larger than the sum of its proper divisors (345164).

394456 is a wasteful number, since it uses less digits than its factorization.

394456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49313 (or 49309 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 394456 is about 628.0573222247. The cubic root of 394456 is about 73.3386405709.

The spelling of 394456 in words is "three hundred ninety-four thousand, four hundred fifty-six".