128325280 has 48 divisors (see below), whose sum is σ = 316358784. Its totient is φ = 49096960.

The previous prime is 128325229. The next prime is 128325283. The reversal of 128325280 is 82523821.

It is not an unprimeable number, because it can be changed into a prime (128325283) 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, 13756 + ... + 21115.

It is an arithmetic number, because the mean of its divisors is an integer number (6590808).

Almost surely, 2^128325280 is an apocalyptic number.

128325280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128325280 is an abundant number, since it is smaller than the sum of its proper divisors (188033504).

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

128325280 is a wasteful number, since it uses less digits than its factorization.

128325280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34909 (or 34901 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 128325280 is about 11328.0748585097. The cubic root of 128325280 is about 504.3949620941.

The spelling of 128325280 in words is "one hundred twenty-eight million, three hundred twenty-five thousand, two hundred eighty".