3368421 has 24 divisors (see below), whose sum is σ = 5617664. Its totient is φ = 1905120.

The previous prime is 3368413. The next prime is 3368423. The reversal of 3368421 is 1248633.

It is a happy number.

It is not a de Polignac number, because 3368421 - 2³ = 3368413 is a prime.

It is a super-2 number, since 2×3368421² = 22692520066482, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3368423) by changing a digit.

It is a nontrivial repunit in base 20.

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, 7791 + ... + 8211.

Almost surely, 2^3368421 is an apocalyptic number.

It is an amenable number.

3368421 is a deficient number, since it is larger than the sum of its proper divisors (2249243).

3368421 is a wasteful number, since it uses less digits than its factorization.

3368421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561 (or 558 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 3368421 is about 1835.3258566260. The cubic root of 3368421 is about 149.9024699330.

The spelling of 3368421 in words is "three million, three hundred sixty-eight thousand, four hundred twenty-one".