4198890 has 32 divisors (see below), whose sum is σ = 10232640. Its totient is φ = 1102464.

The previous prime is 4198889. The next prime is 4198891. The reversal of 4198890 is 988914.

It is an interprime number because it is at equal distance from previous prime (4198889) and next prime (4198891).

It is not an unprimeable number, because it can be changed into a prime (4198891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 966 + ... + 3054.

It is an arithmetic number, because the mean of its divisors is an integer number (319770).

Almost surely, 2^4198890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4198890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5116320).

4198890 is an abundant number, since it is smaller than the sum of its proper divisors (6033750).

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

4198890 is a wasteful number, since it uses less digits than its factorization.

4198890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 4198890 is about 2049.1193230264. The cubic root of 4198890 is about 161.3286498121.

The spelling of 4198890 in words is "four million, one hundred ninety-eight thousand, eight hundred ninety".