128958096 has 40 divisors (see below), whose sum is σ = 337165920. Its totient is φ = 42466816.

The previous prime is 128958091. The next prime is 128958121. The reversal of 128958096 is 690859821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (128958091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12201 + ... + 20168.

It is an arithmetic number, because the mean of its divisors is an integer number (8429148).

Almost surely, 2^128958096 is an apocalyptic number.

128958096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

128958096 is an abundant number, since it is smaller than the sum of its proper divisors (208207824).

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

128958096 is a wasteful number, since it uses less digits than its factorization.

128958096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32463 (or 32457 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The square root of 128958096 is about 11355.9718210288. The cubic root of 128958096 is about 505.2227178251. Note that the first 3 decimals are identical.

The spelling of 128958096 in words is "one hundred twenty-eight million, nine hundred fifty-eight thousand, ninety-six".