3428020 has 12 divisors (see below), whose sum is σ = 7198884. Its totient is φ = 1371200.

The previous prime is 3427981. The next prime is 3428021. The reversal of 3428020 is 208243.

It is a happy number.

3428020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1774224 + 1653796 = 1332^2 + 1286^2 .

It is a super-2 number, since 2×3428020² = 23502642240800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3428021) 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 3 ways as a sum of consecutive naturals, for example, 85681 + ... + 85720.

It is an arithmetic number, because the mean of its divisors is an integer number (599907).

Almost surely, 2^3428020 is an apocalyptic number.

It is an amenable number.

3428020 is an abundant number, since it is smaller than the sum of its proper divisors (3770864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3428020 is a wasteful number, since it uses less digits than its factorization.

3428020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171410 (or 171408 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 3428020 is about 1851.4912908248. The cubic root of 3428020 is about 150.7814038004.

The spelling of 3428020 in words is "three million, four hundred twenty-eight thousand, twenty".