118428 has 24 divisors (see below), whose sum is σ = 282240. Its totient is φ = 38640.

The previous prime is 118423. The next prime is 118429. The reversal of 118428 is 824811.

It is a junction number, because it is equal to n+sod(n) for n = 118398 and 118407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783 + ... + 921.

It is an arithmetic number, because the mean of its divisors is an integer number (11760).

2¹¹⁸⁴²⁸ is an apocalyptic number.

It is an amenable number.

118428 is an abundant number, since it is smaller than the sum of its proper divisors (163812).

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

118428 is a wasteful number, since it uses less digits than its factorization.

118428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 215 counting only the distinct ones).

The product of its digits is 512, while the sum is 24.

The square root of 118428 is about 344.1336949501. The cubic root of 118428 is about 49.1079115566.

The spelling of 118428 in words is "one hundred eighteen thousand, four hundred twenty-eight".