128341836 has 36 divisors (see below), whose sum is σ = 370766032. Its totient is φ = 36669024.

The previous prime is 128341813. The next prime is 128341841. The reversal of 128341836 is 638143821.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 128341836.

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, 254395 + ... + 254898.

Almost surely, 2^128341836 is an apocalyptic number.

It is an amenable number.

128341836 is an abundant number, since it is smaller than the sum of its proper divisors (242424196).

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

128341836 is a wasteful number, since it uses less digits than its factorization.

128341836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509310 (or 509305 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 128341836 is about 11328.8055857623. The cubic root of 128341836 is about 504.4166528160.

The spelling of 128341836 in words is "one hundred twenty-eight million, three hundred forty-one thousand, eight hundred thirty-six".