128683674 has 64 divisors (see below), whose sum is σ = 328262400. Its totient is φ = 36604224.

The previous prime is 128683673. The next prime is 128683733. The reversal of 128683674 is 476386821.

128683674 is a `hidden beast` number, since 1 + 286 + 8 + 367 + 4 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (128683673) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104092 + ... + 105320.

It is an arithmetic number, because the mean of its divisors is an integer number (5129100).

Almost surely, 2^128683674 is an apocalyptic number.

128683674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 128683674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164131200).

128683674 is an abundant number, since it is smaller than the sum of its proper divisors (199578726).

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

128683674 is a wasteful number, since it uses less digits than its factorization.

128683674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524 (or 1518 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 128683674 is about 11343.8826686457. The cubic root of 128683674 is about 504.8640930882.

The spelling of 128683674 in words is "one hundred twenty-eight million, six hundred eighty-three thousand, six hundred seventy-four".