128064396 has 12 divisors (see below), whose sum is σ = 298816952. Its totient is φ = 42688128.

The previous prime is 128064367. The next prime is 128064407. The reversal of 128064396 is 693460821.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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, 5336005 + ... + 5336028.

Almost surely, 2^128064396 is an apocalyptic number.

It is an amenable number.

128064396 is an abundant number, since it is smaller than the sum of its proper divisors (170752556).

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

128064396 is a wasteful number, since it uses less digits than its factorization.

128064396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10672040 (or 10672038 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 128064396 is about 11316.5540691502. The cubic root of 128064396 is about 504.0529202431.

The spelling of 128064396 in words is "one hundred twenty-eight million, sixty-four thousand, three hundred ninety-six".