3328021 has 8 divisors (see below), whose sum is σ = 3538080. Its totient is φ = 3121488.

The previous prime is 3328019. The next prime is 3328037. The reversal of 3328021 is 1208233.

It is a happy number.

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 3328021 - 2¹ = 3328019 is a prime.

It is a super-2 number, since 2×3328021² = 22151447552882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

3328021 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3328021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3328121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215 + ... + 2851.

It is an arithmetic number, because the mean of its divisors is an integer number (442260).

Almost surely, 2^3328021 is an apocalyptic number.

It is an amenable number.

3328021 is a deficient number, since it is larger than the sum of its proper divisors (210059).

3328021 is a wasteful number, since it uses less digits than its factorization.

3328021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3328021 is about 1824.2864358428. The cubic root of 3328021 is about 149.3007603054.

The spelling of 3328021 in words is "three million, three hundred twenty-eight thousand, twenty-one".