128028034 has 8 divisors (see below), whose sum is σ = 192241548. Its totient is φ = 63947520.

The previous prime is 128028001. The next prime is 128028049. The reversal of 128028034 is 430820821.

It can be written as a sum of positive squares in 2 ways, for example, as 116704809 + 11323225 = 10803^2 + 3365^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 128027993 and 128028011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30807 + ... + 34714.

Almost surely, 2^128028034 is an apocalyptic number.

128028034 is a deficient number, since it is larger than the sum of its proper divisors (64213514).

128028034 is an equidigital number, since it uses as much as digits as its factorization.

128028034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66500.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 128028034 is about 11314.9473706244. The cubic root of 128028034 is about 504.0052095917.

Adding to 128028034 its reverse (430820821), we get a palindrome (558848855).

The spelling of 128028034 in words is "one hundred twenty-eight million, twenty-eight thousand, thirty-four".