128674 has 24 divisors (see below), whose sum is σ = 244188. Its totient is φ = 50400.

The previous prime is 128669. The next prime is 128677. The reversal of 128674 is 476821.

It can be written as a sum of positive squares in 2 ways, for example, as 127449 + 1225 = 357^2 + 35^2 .

It is a d-powerful number, because it can be written as 1 + 2¹³ + 6⁴ + 8³ + 7⁶ + 4⁵ .

It is not an unprimeable number, because it can be changed into a prime (128677) by changing a digit.

128674 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1224 + ... + 1324.

2¹²⁸⁶⁷⁴ is an apocalyptic number.

128674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128674 is a deficient number, since it is larger than the sum of its proper divisors (115514).

128674 is a wasteful number, since it uses less digits than its factorization.

128674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 123 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 128674 is about 358.7115833089. The cubic root of 128674 is about 50.4851441451.

The spelling of 128674 in words is "one hundred twenty-eight thousand, six hundred seventy-four".