88640128 has 32 divisors (see below), whose sum is σ = 177284160. Its totient is φ = 44145408.

The previous prime is 88640087. The next prime is 88640131. The reversal of 88640128 is 82104688.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35001 + ... + 37447.

It is an arithmetic number, because the mean of its divisors is an integer number (5540130).

Almost surely, 2^88640128 is an apocalyptic number.

It is an amenable number.

88640128 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

88640128 is a wasteful number, since it uses less digits than its factorization.

88640128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744 (or 2732 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 88640128 is about 9414.8886344980. Note that the first 3 decimals coincide. The cubic root of 88640128 is about 445.8719225767.

It can be divided in two parts, 886 and 40128, that added together give a palindrome (41014).

The spelling of 88640128 in words is "eighty-eight million, six hundred forty thousand, one hundred twenty-eight".