128170244 has 12 divisors (see below), whose sum is σ = 231533568. Its totient is φ = 62017800.

The previous prime is 128170241. The next prime is 128170249. The reversal of 128170244 is 442071821.

It is a super-2 number, since 2×128170244² = 32855222894039072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128170241) 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 3 ways as a sum of consecutive naturals, for example, 516692 + ... + 516939.

It is an arithmetic number, because the mean of its divisors is an integer number (19294464).

Almost surely, 2^128170244 is an apocalyptic number.

It is an amenable number.

128170244 is a deficient number, since it is larger than the sum of its proper divisors (103363324).

128170244 is a wasteful number, since it uses less digits than its factorization.

128170244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033666 (or 1033664 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 128170244 is about 11321.2297918557. The cubic root of 128170244 is about 504.1917522234.

The spelling of 128170244 in words is "one hundred twenty-eight million, one hundred seventy thousand, two hundred forty-four".