3340521 has 24 divisors (see below), whose sum is σ = 5110560. Its totient is φ = 2179872.

The previous prime is 3340511. The next prime is 3340531. The reversal of 3340521 is 1250433.

It is an interprime number because it is at equal distance from previous prime (3340511) and next prime (3340531).

It is not a de Polignac number, because 3340521 - 2⁹ = 3340009 is a prime.

It is a super-2 number, since 2×3340521² = 22318161102882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3340494 and 3340503.

It is not an unprimeable number, because it can be changed into a prime (3340511) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 14221 + ... + 14453.

It is an arithmetic number, because the mean of its divisors is an integer number (212940).

Almost surely, 2^3340521 is an apocalyptic number.

It is an amenable number.

3340521 is a deficient number, since it is larger than the sum of its proper divisors (1770039).

3340521 is an equidigital number, since it uses as much as digits as its factorization.

3340521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 3340521 is about 1827.7092219497. The cubic root of 3340521 is about 149.4874506157.

Adding to 3340521 its reverse (1250433), we get a palindrome (4590954).

The spelling of 3340521 in words is "three million, three hundred forty thousand, five hundred twenty-one".