3998028 has 24 divisors (see below), whose sum is σ = 9378880. Its totient is φ = 1325520.

The previous prime is 3998003. The next prime is 3998041. The reversal of 3998028 is 8208993.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1743 + ... + 3321.

Almost surely, 2^3998028 is an apocalyptic number.

It is an amenable number.

3998028 is an abundant number, since it is smaller than the sum of its proper divisors (5380852).

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

3998028 is a wasteful number, since it uses less digits than its factorization.

3998028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797 (or 1795 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 3998028 is about 1999.5069392228. The cubic root of 3998028 is about 158.7140146182.

The spelling of 3998028 in words is "three million, nine hundred ninety-eight thousand, twenty-eight".