128366484 has 24 divisors (see below), whose sum is σ = 299705280. Its totient is φ = 42762624.

The previous prime is 128366461. The next prime is 128366503. The reversal of 128366484 is 484663821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35337 + ... + 38799.

It is an arithmetic number, because the mean of its divisors is an integer number (12487720).

Almost surely, 2^128366484 is an apocalyptic number.

It is an amenable number.

128366484 is an abundant number, since it is smaller than the sum of its proper divisors (171338796).

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

128366484 is a wasteful number, since it uses less digits than its factorization.

128366484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6559 (or 6557 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The square root of 128366484 is about 11329.8933799043. The cubic root of 128366484 is about 504.4489417568.

The spelling of 128366484 in words is "one hundred twenty-eight million, three hundred sixty-six thousand, four hundred eighty-four".