128806050 has 24 divisors (see below), whose sum is σ = 319439376. Its totient is φ = 34348240.

The previous prime is 128806043. The next prime is 128806079. The reversal of 128806050 is 50608821.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 128805999 and 128806017.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429204 + ... + 429503.

It is an arithmetic number, because the mean of its divisors is an integer number (13309974).

Almost surely, 2^128806050 is an apocalyptic number.

128806050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128806050 is an abundant number, since it is smaller than the sum of its proper divisors (190633326).

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

128806050 is a wasteful number, since it uses less digits than its factorization.

128806050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858722 (or 858717 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 128806050 is about 11349.2753072608. The cubic root of 128806050 is about 505.0240814579.

The spelling of 128806050 in words is "one hundred twenty-eight million, eight hundred six thousand, fifty".