43394 has 8 divisors (see below), whose sum is σ = 70140. Its totient is φ = 20016.

The previous prime is 43391. The next prime is 43397. The reversal of 43394 is 49334.

43394 = T₁₂ + T₁₃ + ... + T₆₃.

It is an interprime number because it is at equal distance from previous prime (43391) and next prime (43397).

It can be written as a sum of positive squares in 2 ways, for example, as 42025 + 1369 = 205^2 + 37^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 15.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (43391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809 + ... + 860.

2⁴³³⁹⁴ is an apocalyptic number.

43394 is a deficient number, since it is larger than the sum of its proper divisors (26746).

43394 is a wasteful number, since it uses less digits than its factorization.

43394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684.

The product of its digits is 1296, while the sum is 23.

The square root of 43394 is about 208.3122656014. The cubic root of 43394 is about 35.1406584525.

The spelling of 43394 in words is "forty-three thousand, three hundred ninety-four".