128573988 has 48 divisors (see below), whose sum is σ = 326000640. Its totient is φ = 39290400.

The previous prime is 128573987. The next prime is 128573989. The reversal of 128573988 is 889375821.

It is an interprime number because it is at equal distance from previous prime (128573987) and next prime (128573989).

It is a self number, because there is not a number n which added to its sum of digits gives 128573988.

It is not an unprimeable number, because it can be changed into a prime (128573983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2028 + ... + 16163.

It is an arithmetic number, because the mean of its divisors is an integer number (6791680).

Almost surely, 2^128573988 is an apocalyptic number.

It is an amenable number.

128573988 is an abundant number, since it is smaller than the sum of its proper divisors (197426652).

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

128573988 is a wasteful number, since it uses less digits than its factorization.

128573988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18248 (or 18246 counting only the distinct ones).

The product of its digits is 967680, while the sum is 51.

The square root of 128573988 is about 11339.0470499068. The cubic root of 128573988 is about 504.7206087792.

The spelling of 128573988 in words is "one hundred twenty-eight million, five hundred seventy-three thousand, nine hundred eighty-eight".