4398198 has 64 divisors (see below), whose sum is σ = 10920960. Its totient is φ = 1153152.

The previous prime is 4398197. The next prime is 4398211. The reversal of 4398198 is 8918934.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4398197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27936 + ... + 28092.

It is an arithmetic number, because the mean of its divisors is an integer number (170640).

Almost surely, 2^4398198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4398198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5460480).

4398198 is an abundant number, since it is smaller than the sum of its proper divisors (6522762).

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

4398198 is a wasteful number, since it uses less digits than its factorization.

4398198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221.

The product of its digits is 62208, while the sum is 42.

The square root of 4398198 is about 2097.1881174563. The cubic root of 4398198 is about 163.8418811121.

The spelling of 4398198 in words is "four million, three hundred ninety-eight thousand, one hundred ninety-eight".