3998080 has 32 divisors (see below), whose sum is σ = 9559440. Its totient is φ = 1598976.

The previous prime is 3998069. The next prime is 3998089. The reversal of 3998080 is 808993.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3998089) by changing a digit.

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, 2484 + ... + 3763.

Almost surely, 2^3998080 is an apocalyptic number.

It is an amenable number.

3998080 is an abundant number, since it is smaller than the sum of its proper divisors (5561360).

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

3998080 is an equidigital number, since it uses as much as digits as its factorization.

3998080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6266 (or 6254 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 3998080 is about 1999.5199423862. The cubic root of 3998080 is about 158.7147027152.

The spelling of 3998080 in words is "three million, nine hundred ninety-eight thousand, eighty".