88128940 has 24 divisors (see below), whose sum is σ = 186489072. Its totient is φ = 34981440.

The previous prime is 88128917. The next prime is 88128947. The reversal of 88128940 is 4982188.

It is a junction number, because it is equal to n+sod(n) for n = 88128893 and 88128902.

It is not an unprimeable number, because it can be changed into a prime (88128947) 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 7 ways as a sum of consecutive naturals, for example, 14199 + ... + 19438.

It is an arithmetic number, because the mean of its divisors is an integer number (7770378).

Almost surely, 2^88128940 is an apocalyptic number.

It is an amenable number.

88128940 is an abundant number, since it is smaller than the sum of its proper divisors (98360132).

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

88128940 is a wasteful number, since it uses less digits than its factorization.

88128940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33777 (or 33775 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 88128940 is about 9387.7015291284. The cubic root of 88128940 is about 445.0131545158.

The spelling of 88128940 in words is "eighty-eight million, one hundred twenty-eight thousand, nine hundred forty".