3340405 has 16 divisors (see below), whose sum is σ = 4322304. Its totient is φ = 2471040.

The previous prime is 3340391. The next prime is 3340411. The reversal of 3340405 is 5040433.

It is not a de Polignac number, because 3340405 - 2⁷ = 3340277 is a prime.

It is a super-2 number, since 2×3340405² = 22316611128050, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3097 + ... + 4033.

It is an arithmetic number, because the mean of its divisors is an integer number (270144).

Almost surely, 2^3340405 is an apocalyptic number.

It is an amenable number.

3340405 is a deficient number, since it is larger than the sum of its proper divisors (981899).

3340405 is a wasteful number, since it uses less digits than its factorization.

3340405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 3340405 is about 1827.6774879612. The cubic root of 3340405 is about 149.4857202723.

Adding to 3340405 its reverse (5040433), we get a palindrome (8380838).

The spelling of 3340405 in words is "three million, three hundred forty thousand, four hundred five".