120828138 has 16 divisors (see below), whose sum is σ = 241764480. Its totient is φ = 40258016.

The previous prime is 120828101. The next prime is 120828161. The reversal of 120828138 is 831828021.

It is a junction number, because it is equal to n+sod(n) for n = 120828099 and 120828108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22006 + ... + 26942.

It is an arithmetic number, because the mean of its divisors is an integer number (15110280).

Almost surely, 2^120828138 is an apocalyptic number.

120828138 is an abundant number, since it is smaller than the sum of its proper divisors (120936342).

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

120828138 is a wasteful number, since it uses less digits than its factorization.

120828138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9021.

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 120828138 is about 10992.1853150318. The cubic root of 120828138 is about 494.3744613357.

The spelling of 120828138 in words is "one hundred twenty million, eight hundred twenty-eight thousand, one hundred thirty-eight".