3340421 has 8 divisors (see below), whose sum is σ = 3880704. Its totient is φ = 2815920.

The previous prime is 3340417. The next prime is 3340427. The reversal of 3340421 is 1240433.

3340421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3340421 - 2² = 3340417 is a prime.

It is a super-2 number, since 2×3340421² = 22316824914482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3340421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3340427) by changing a digit.

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, 3485 + ... + 4338.

It is an arithmetic number, because the mean of its divisors is an integer number (485088).

Almost surely, 2^3340421 is an apocalyptic number.

It is an amenable number.

3340421 is a deficient number, since it is larger than the sum of its proper divisors (540283).

3340421 is an equidigital number, since it uses as much as digits as its factorization.

3340421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7891.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 3340421 is about 1827.6818650958. The cubic root of 3340421 is about 149.4859589427.

Adding to 3340421 its reverse (1240433), we get a palindrome (4580854).

The spelling of 3340421 in words is "three million, three hundred forty thousand, four hundred twenty-one".