128788050 has 48 divisors (see below), whose sum is σ = 320104512. Its totient is φ = 34267200.

The previous prime is 128788031. The next prime is 128788081. The reversal of 128788050 is 50887821.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108460 + ... + 109640.

It is an arithmetic number, because the mean of its divisors is an integer number (6668844).

Almost surely, 2^128788050 is an apocalyptic number.

128788050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128788050 is an abundant number, since it is smaller than the sum of its proper divisors (191316462).

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

128788050 is a wasteful number, since it uses less digits than its factorization.

128788050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923 (or 1918 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 128788050 is about 11348.4822773796. The cubic root of 128788050 is about 505.0005555005. Note that the first 3 decimals are identical.

The spelling of 128788050 in words is "one hundred twenty-eight million, seven hundred eighty-eight thousand, fifty".