394634 has 12 divisors (see below), whose sum is σ = 620466. Its totient is φ = 188232.

The previous prime is 394633. The next prime is 394637. The reversal of 394634 is 436493.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 330625 + 64009 = 575^2 + 253^2 .

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 394597 and 394606.

It is not an unprimeable number, because it can be changed into a prime (394631) 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 5 ways as a sum of consecutive naturals, for example, 872 + ... + 1244.

2³⁹⁴⁶³⁴ is an apocalyptic number.

394634 is a deficient number, since it is larger than the sum of its proper divisors (225832).

394634 is a wasteful number, since it uses less digits than its factorization.

394634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421 (or 398 counting only the distinct ones).

The product of its digits is 7776, while the sum is 29.

The square root of 394634 is about 628.1990130524. The cubic root of 394634 is about 73.3496703731.

The spelling of 394634 in words is "three hundred ninety-four thousand, six hundred thirty-four".