128386752 has 56 divisors (see below), whose sum is σ = 365827056. Its totient is φ = 39502848.

The previous prime is 128386747. The next prime is 128386763. The reversal of 128386752 is 257683821.

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, 23223 + ... + 28214.

It is an arithmetic number, because the mean of its divisors is an integer number (6532626).

Almost surely, 2^128386752 is an apocalyptic number.

128386752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128386752 is an abundant number, since it is smaller than the sum of its proper divisors (237440304).

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

128386752 is a wasteful number, since it uses less digits than its factorization.

128386752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51465 (or 51455 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 128386752 is about 11330.7877925588. The cubic root of 128386752 is about 504.4754897901.

It can be divided in two parts, 12 and 8386752, that multiplied together give a square (100641024 = 10032²).

The spelling of 128386752 in words is "one hundred twenty-eight million, three hundred eighty-six thousand, seven hundred fifty-two".