128822488 has 32 divisors (see below), whose sum is σ = 250905600. Its totient is φ = 61961632.

The previous prime is 128822467. The next prime is 128822497. The reversal of 128822488 is 884228821.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19281 + ... + 25087.

It is an arithmetic number, because the mean of its divisors is an integer number (7840800).

Almost surely, 2^128822488 is an apocalyptic number.

It is an amenable number.

128822488 is a deficient number, since it is larger than the sum of its proper divisors (122083112).

128822488 is a wasteful number, since it uses less digits than its factorization.

128822488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5919 (or 5915 counting only the distinct ones).

The product of its digits is 131072, while the sum is 43.

The square root of 128822488 is about 11349.9994713656. Note that the first 3 decimals coincide. The cubic root of 128822488 is about 505.0455639704.

The spelling of 128822488 in words is "one hundred twenty-eight million, eight hundred twenty-two thousand, four hundred eighty-eight".