128079628 has 12 divisors (see below), whose sum is σ = 229352200. Its totient is φ = 62550432.

The previous prime is 128079587. The next prime is 128079629. The reversal of 128079628 is 826970821.

It is a super-2 number, since 2×128079628² = 32808782217236768, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (128079629) 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, 372153 + ... + 372496.

Almost surely, 2^128079628 is an apocalyptic number.

It is an amenable number.

128079628 is a deficient number, since it is larger than the sum of its proper divisors (101272572).

128079628 is a wasteful number, since it uses less digits than its factorization.

128079628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744696 (or 744694 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 128079628 is about 11317.2270455267. The cubic root of 128079628 is about 504.0729034962.

It can be divided in two parts, 1280 and 79628, that added together give a palindrome (80908).

The spelling of 128079628 in words is "one hundred twenty-eight million, seventy-nine thousand, six hundred twenty-eight".