3421128 has 16 divisors (see below), whose sum is σ = 8552880. Its totient is φ = 1140368.

The previous prime is 3421109. The next prime is 3421151. The reversal of 3421128 is 8211243.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71250 + ... + 71297.

It is an arithmetic number, because the mean of its divisors is an integer number (534555).

Almost surely, 2^3421128 is an apocalyptic number.

It is an amenable number.

3421128 is an abundant number, since it is smaller than the sum of its proper divisors (5131752).

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

3421128 is a wasteful number, since it uses less digits than its factorization.

3421128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142556 (or 142552 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 3421128 is about 1849.6291520194. The cubic root of 3421128 is about 150.6802878367.

The spelling of 3421128 in words is "three million, four hundred twenty-one thousand, one hundred twenty-eight".