3408021 has 8 divisors (see below), whose sum is σ = 5048960. Its totient is φ = 2271996.

The previous prime is 3408001. The next prime is 3408023. The reversal of 3408021 is 1208043.

It is a happy number.

It is not a de Polignac number, because 3408021 - 2⁷ = 3407893 is a prime.

It is a super-2 number, since 2×3408021² = 23229214272882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3407985 and 3408003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3408023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63085 + ... + 63138.

It is an arithmetic number, because the mean of its divisors is an integer number (631120).

Almost surely, 2^3408021 is an apocalyptic number.

It is an amenable number.

3408021 is a deficient number, since it is larger than the sum of its proper divisors (1640939).

3408021 is a wasteful number, since it uses less digits than its factorization.

3408021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126232 (or 126226 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 3408021 is about 1846.0826092025. The cubic root of 3408021 is about 150.4876131717.

The spelling of 3408021 in words is "three million, four hundred eight thousand, twenty-one".