3998502 has 48 divisors (see below), whose sum is σ = 9350640. Its totient is φ = 1230336.

The previous prime is 3998497. The next prime is 3998521. The reversal of 3998502 is 2058993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22249 + ... + 22427.

It is an arithmetic number, because the mean of its divisors is an integer number (194805).

Almost surely, 2^3998502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3998502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4675320).

3998502 is an abundant number, since it is smaller than the sum of its proper divisors (5352138).

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

3998502 is a wasteful number, since it uses less digits than its factorization.

3998502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 3998502 is about 1999.6254649309. The cubic root of 3998502 is about 158.7202866661.

The spelling of 3998502 in words is "three million, nine hundred ninety-eight thousand, five hundred two".