128441264 has 20 divisors (see below), whose sum is σ = 284405904. Its totient is φ = 55046208.

The previous prime is 128441249. The next prime is 128441267. The reversal of 128441264 is 462144821.

It is a self number, because there is not a number n which added to its sum of digits gives 128441264.

It is not an unprimeable number, because it can be changed into a prime (128441267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573287 + ... + 573510.

Almost surely, 2^128441264 is an apocalyptic number.

128441264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

128441264 is an abundant number, since it is smaller than the sum of its proper divisors (155964640).

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

128441264 is a wasteful number, since it uses less digits than its factorization.

128441264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146812 (or 1146806 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 128441264 is about 11333.1930187392. The cubic root of 128441264 is about 504.5468784558.

The spelling of 128441264 in words is "one hundred twenty-eight million, four hundred forty-one thousand, two hundred sixty-four".