118828 has 12 divisors (see below), whose sum is σ = 211792. Its totient is φ = 58320.

The previous prime is 118819. The next prime is 118831. The reversal of 118828 is 828811.

118828 is a nontrivial binomial coefficient, being equal to C(488, 2).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 118796 and 118805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1 + ... + 487.

2¹¹⁸⁸²⁸ is an apocalyptic number.

118828 is the 487-th triangular number and also the 244-th hexagonal number.

118828 is the 163-rd centered nonagonal number.

It is an amenable number.

118828 is a deficient number, since it is larger than the sum of its proper divisors (92964).

118828 is a wasteful number, since it uses less digits than its factorization.

118828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 550 counting only the distinct ones).

The product of its digits is 1024, while the sum is 28.

The square root of 118828 is about 344.7143745190. The cubic root of 118828 is about 49.1631380531.

It can be divided in two parts, 118 and 828, that added together give a triangular number (946 = T₄₃).

The spelling of 118828 in words is "one hundred eighteen thousand, eight hundred twenty-eight".