340394 has 4 divisors (see below), whose sum is σ = 510594. Its totient is φ = 170196.

The previous prime is 340393. The next prime is 340397. The reversal of 340394 is 493043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 214369 + 126025 = 463^2 + 355^2 .

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 340394.

It is not an unprimeable number, because it can be changed into a prime (340393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85097 + ... + 85100.

2³⁴⁰³⁹⁴ is an apocalyptic number.

340394 is a deficient number, since it is larger than the sum of its proper divisors (170200).

340394 is a wasteful number, since it uses less digits than its factorization.

340394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170199.

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

The square root of 340394 is about 583.4329438762. The cubic root of 340394 is about 69.8222702150.

It can be divided in two parts, 34039 and 4, that added together give a palindrome (34043).

The spelling of 340394 in words is "three hundred forty thousand, three hundred ninety-four".