128484198 has 48 divisors (see below), whose sum is σ = 303340560. Its totient is φ = 40303872.

The previous prime is 128484197. The next prime is 128484199. The reversal of 128484198 is 891484821.

It is an interprime number because it is at equal distance from previous prime (128484197) and next prime (128484199).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128484197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11490 + ... + 19722.

It is an arithmetic number, because the mean of its divisors is an integer number (6319595).

Almost surely, 2^128484198 is an apocalyptic number.

128484198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 128484198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151670280).

128484198 is an abundant number, since it is smaller than the sum of its proper divisors (174856362).

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

128484198 is a wasteful number, since it uses less digits than its factorization.

128484198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8278 (or 8255 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 128484198 is about 11335.0870309848. The cubic root of 128484198 is about 504.6030904077.

The spelling of 128484198 in words is "one hundred twenty-eight million, four hundred eighty-four thousand, one hundred ninety-eight".