394556 has 6 divisors (see below), whose sum is σ = 690480. Its totient is φ = 197276.

The previous prime is 394549. The next prime is 394571. The reversal of 394556 is 655493.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49316 + ... + 49323.

It is an arithmetic number, because the mean of its divisors is an integer number (115080).

2³⁹⁴⁵⁵⁶ is an apocalyptic number.

It is an amenable number.

394556 is a deficient number, since it is larger than the sum of its proper divisors (295924).

394556 is a wasteful number, since it uses less digits than its factorization.

394556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98643 (or 98641 counting only the distinct ones).

The product of its digits is 16200, while the sum is 32.

The square root of 394556 is about 628.1369277474. The cubic root of 394556 is about 73.3448374973.

The spelling of 394556 in words is "three hundred ninety-four thousand, five hundred fifty-six".