128560544 has 48 divisors (see below), whose sum is σ = 291412800. Its totient is φ = 54687744.

The previous prime is 128560541. The next prime is 128560559. The reversal of 128560544 is 445065821.

It is not an unprimeable number, because it can be changed into a prime (128560541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29072 + ... + 33200.

It is an arithmetic number, because the mean of its divisors is an integer number (6071100).

Almost surely, 2^128560544 is an apocalyptic number.

128560544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128560544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145706400).

128560544 is an abundant number, since it is smaller than the sum of its proper divisors (162852256).

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

128560544 is a wasteful number, since it uses less digits than its factorization.

128560544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4285 (or 4277 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 128560544 is about 11338.4542156327. The cubic root of 128560544 is about 504.7030165728.

The spelling of 128560544 in words is "one hundred twenty-eight million, five hundred sixty thousand, five hundred forty-four".