128766484 has 24 divisors (see below), whose sum is σ = 280945728. Its totient is φ = 50168640.

The previous prime is 128766481. The next prime is 128766487. The reversal of 128766484 is 484667821.

It is an interprime number because it is at equal distance from previous prime (128766481) and next prime (128766487).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128766481) 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 7 ways as a sum of consecutive naturals, for example, 208729 + ... + 209344.

It is an arithmetic number, because the mean of its divisors is an integer number (11706072).

Almost surely, 2^128766484 is an apocalyptic number.

128766484 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

128766484 is an abundant number, since it is smaller than the sum of its proper divisors (152179244).

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

128766484 is a wasteful number, since it uses less digits than its factorization.

128766484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418095 (or 418093 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The square root of 128766484 is about 11347.5320664892. The cubic root of 128766484 is about 504.9723659028.

The spelling of 128766484 in words is "one hundred twenty-eight million, seven hundred sixty-six thousand, four hundred eighty-four".