3281420 has 12 divisors (see below), whose sum is σ = 6891024. Its totient is φ = 1312560.

The previous prime is 3281417. The next prime is 3281431. The reversal of 3281420 is 241823.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 164071 = 3281420 / (3 + 2 + 8 + 1 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 3281392 and 3281401.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 82016 + ... + 82055.

It is an arithmetic number, because the mean of its divisors is an integer number (574252).

Almost surely, 2^3281420 is an apocalyptic number.

It is an amenable number.

3281420 is an abundant number, since it is smaller than the sum of its proper divisors (3609604).

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

3281420 is a wasteful number, since it uses less digits than its factorization.

3281420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164080 (or 164078 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 3281420 is about 1811.4690171239. The cubic root of 3281420 is about 148.6006150395.

The spelling of 3281420 in words is "three million, two hundred eighty-one thousand, four hundred twenty".