128498224 has 40 divisors (see below), whose sum is σ = 261411840. Its totient is φ = 61108800.

The previous prime is 128498221. The next prime is 128498231. The reversal of 128498224 is 422894821.

It is not an unprimeable number, because it can be changed into a prime (128498221) 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 7 ways as a sum of consecutive naturals, for example, 27069 + ... + 31459.

It is an arithmetic number, because the mean of its divisors is an integer number (6535296).

Almost surely, 2^128498224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128498224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130705920).

128498224 is an abundant number, since it is smaller than the sum of its proper divisors (132913616).

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

128498224 is a wasteful number, since it uses less digits than its factorization.

128498224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489 (or 4483 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 128498224 is about 11335.7057124821. The cubic root of 128498224 is about 504.6214514345.

The spelling of 128498224 in words is "one hundred twenty-eight million, four hundred ninety-eight thousand, two hundred twenty-four".