340394605 has 8 divisors (see below), whose sum is σ = 422559000. Its totient is φ = 262925376.

The previous prime is 340394599. The next prime is 340394611. The reversal of 340394605 is 506493043.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (340394599) and next prime (340394611).

It can be written as a sum of positive squares in 4 ways, for example, as 75811849 + 264582756 = 8707^2 + 16266^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 340394605 - 2¹⁹ = 339870317 is a prime.

It is a super-2 number, since 2×340394605² = 231736974226212050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1173630 + ... + 1173919.

It is an arithmetic number, because the mean of its divisors is an integer number (52819875).

Almost surely, 2^340394605 is an apocalyptic number.

It is an amenable number.

340394605 is a deficient number, since it is larger than the sum of its proper divisors (82164395).

340394605 is a wasteful number, since it uses less digits than its factorization.

340394605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347583.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 340394605 is about 18449.7860421198. The cubic root of 340394605 is about 698.2231158120.

The spelling of 340394605 in words is "three hundred forty million, three hundred ninety-four thousand, six hundred five".