128067628 has 12 divisors (see below), whose sum is σ = 241358320. Its totient is φ = 59108112.

The previous prime is 128067617. The next prime is 128067629. The reversal of 128067628 is 826760821.

It is a super-3 number, since 3×128067628³ (a number of 25 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (128067629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1231368 + ... + 1231471.

Almost surely, 2^128067628 is an apocalyptic number.

It is an amenable number.

128067628 is a deficient number, since it is larger than the sum of its proper divisors (113290692).

128067628 is a wasteful number, since it uses less digits than its factorization.

128067628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462856 (or 2462854 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 128067628 is about 11316.6968679028. The cubic root of 128067628 is about 504.0571605196.

The spelling of 128067628 in words is "one hundred twenty-eight million, sixty-seven thousand, six hundred twenty-eight".