4020198 has 64 divisors (see below), whose sum is σ = 10214400. Its totient is φ = 1026432.

The previous prime is 4020197. The next prime is 4020217. The reversal of 4020198 is 8910204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020197) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20103 + ... + 20301.

It is an arithmetic number, because the mean of its divisors is an integer number (159600).

Almost surely, 2^4020198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4020198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5107200).

4020198 is an abundant number, since it is smaller than the sum of its proper divisors (6194202).

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

4020198 is a wasteful number, since it uses less digits than its factorization.

4020198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 4020198 is about 2005.0431416805. The cubic root of 4020198 is about 159.0068427892.

The spelling of 4020198 in words is "four million, twenty thousand, one hundred ninety-eight".