128841838 has 8 divisors (see below), whose sum is σ = 199927080. Its totient is φ = 62199480.

The previous prime is 128841767. The next prime is 128841851. The reversal of 128841838 is 838148821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 128841794 and 128841803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1110648 + ... + 1110763.

It is an arithmetic number, because the mean of its divisors is an integer number (24990885).

Almost surely, 2^128841838 is an apocalyptic number.

128841838 is a deficient number, since it is larger than the sum of its proper divisors (71085242).

128841838 is a wasteful number, since it uses less digits than its factorization.

128841838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221442.

The product of its digits is 98304, while the sum is 43.

The square root of 128841838 is about 11350.8518623053. The cubic root of 128841838 is about 505.0708497792.

The spelling of 128841838 in words is "one hundred twenty-eight million, eight hundred forty-one thousand, eight hundred thirty-eight".