394628 has 12 divisors (see below), whose sum is σ = 743820. Its totient is φ = 182112.

The previous prime is 394619. The next prime is 394631. The reversal of 394628 is 826493.

394628 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 24964 + 369664 = 158^2 + 608^2 .

It is a d-powerful number, because it can be written as 3³ + 9² + 6⁴ + 4⁹ + 2¹⁷ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 394594 and 394603.

It is an unprimeable number.

394628 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3743 + ... + 3846.

It is an arithmetic number, because the mean of its divisors is an integer number (61985).

2³⁹⁴⁶²⁸ is an apocalyptic number.

It is an amenable number.

394628 is a deficient number, since it is larger than the sum of its proper divisors (349192).

394628 is a wasteful number, since it uses less digits than its factorization.

394628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7606 (or 7604 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 394628 is about 628.1942374775. The cubic root of 394628 is about 73.3492986360.

The spelling of 394628 in words is "three hundred ninety-four thousand, six hundred twenty-eight".