394641 has 12 divisors (see below), whose sum is σ = 614068. Its totient is φ = 242784.

The previous prime is 394637. The next prime is 394643. The reversal of 394641 is 146493.

It can be written as a sum of positive squares in 2 ways, for example, as 254016 + 140625 = 504^2 + 375^2 .

It is not a de Polignac number, because 394641 - 2² = 394637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (394643) 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 11 ways as a sum of consecutive naturals, for example, 1570 + ... + 1803.

2³⁹⁴⁶⁴¹ is an apocalyptic number.

It is an amenable number.

394641 is a deficient number, since it is larger than the sum of its proper divisors (219427).

394641 is a wasteful number, since it uses less digits than its factorization.

394641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3392 (or 3389 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 394641 is about 628.2045845105. The cubic root of 394641 is about 73.3501040615.

It can be divided in two parts, 394 and 641, that added together give a triangular number (1035 = T₄₅).

The spelling of 394641 in words is "three hundred ninety-four thousand, six hundred forty-one".