128682244 has 12 divisors (see below), whose sum is σ = 226496844. Its totient is φ = 63968864.

The previous prime is 128682241. The next prime is 128682247. The reversal of 128682244 is 442286821.

It is an interprime number because it is at equal distance from previous prime (128682241) and next prime (128682247).

It can be written as a sum of positive squares in 2 ways, for example, as 124322500 + 4359744 = 11150^2 + 2088^2 .

It is not an unprimeable number, because it can be changed into a prime (128682241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92287 + ... + 93670.

It is an arithmetic number, because the mean of its divisors is an integer number (18874737).

Almost surely, 2^128682244 is an apocalyptic number.

It is an amenable number.

128682244 is a deficient number, since it is larger than the sum of its proper divisors (97814600).

128682244 is a wasteful number, since it uses less digits than its factorization.

128682244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186134 (or 186132 counting only the distinct ones).

The product of its digits is 49152, while the sum is 37.

The square root of 128682244 is about 11343.8196389047. The cubic root of 128682244 is about 504.8622229770.

The spelling of 128682244 in words is "one hundred twenty-eight million, six hundred eighty-two thousand, two hundred forty-four".