128552760 has 192 divisors, whose sum is σ = 482227200. Its totient is φ = 29092608.

The previous prime is 128552731. The next prime is 128552761. The reversal of 128552760 is 67255821.

It is a happy number.

128552760 is a `hidden beast` number, since 128 + 5 + 527 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128552761) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 350097 + ... + 350463.

It is an arithmetic number, because the mean of its divisors is an integer number (2511600).

Almost surely, 2^128552760 is an apocalyptic number.

128552760 is a gapful number since it is divisible by the number (10) 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 128552760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241113600).

128552760 is an abundant number, since it is smaller than the sum of its proper divisors (353674440).

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

128552760 is a wasteful number, since it uses less digits than its factorization.

128552760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 128552760 is about 11338.1109537700. The cubic root of 128552760 is about 504.6928302242.

It can be divided in two parts, 1285 and 52760, that added together give a palindrome (54045).

The spelling of 128552760 in words is "one hundred twenty-eight million, five hundred fifty-two thousand, seven hundred sixty".