394426 has 12 divisors (see below), whose sum is σ = 612846. Its totient is φ = 190320.

The previous prime is 394411. The next prime is 394453. The reversal of 394426 is 624493.

It can be written as a sum of positive squares in 3 ways, for example, as 159201 + 235225 = 399^2 + 485^2 .

It is a d-powerful number, because it can be written as 3⁶ + 9 + 4⁴ + 4⁹ + 2¹⁷ + 6³ .

It is a junction number, because it is equal to n+sod(n) for n = 394394 and 394403.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6436 + ... + 6496.

2³⁹⁴⁴²⁶ is an apocalyptic number.

394426 is a deficient number, since it is larger than the sum of its proper divisors (218420).

394426 is an equidigital number, since it uses as much as digits as its factorization.

394426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 116 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 394426 is about 628.0334386002. The cubic root of 394426 is about 73.3367812888.

It can be divided in two parts, 394 and 426, that added together give a triangular number (820 = T₄₀).

The spelling of 394426 in words is "three hundred ninety-four thousand, four hundred twenty-six".