128444982 has 16 divisors (see below), whose sum is σ = 263833392. Its totient is φ = 41657760.

The previous prime is 128444971. The next prime is 128444989. The reversal of 128444982 is 289444821.

It is a super-2 number, since 2×128444982² = 32996226801960648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128444989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289069 + ... + 289512.

It is an arithmetic number, because the mean of its divisors is an integer number (16489587).

Almost surely, 2^128444982 is an apocalyptic number.

128444982 is an abundant number, since it is smaller than the sum of its proper divisors (135388410).

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

128444982 is a wasteful number, since it uses less digits than its factorization.

128444982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578623.

The product of its digits is 147456, while the sum is 42.

The square root of 128444982 is about 11333.3570489948. The cubic root of 128444982 is about 504.5517467957.

The spelling of 128444982 in words is "one hundred twenty-eight million, four hundred forty-four thousand, nine hundred eighty-two".