108428 has 6 divisors (see below), whose sum is σ = 189756. Its totient is φ = 54212.

The previous prime is 108421. The next prime is 108439. The reversal of 108428 is 824801.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 108428.

It is not an unprimeable number, because it can be changed into a prime (108421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13550 + ... + 13557.

It is an arithmetic number, because the mean of its divisors is an integer number (31626).

2¹⁰⁸⁴²⁸ is an apocalyptic number.

It is an amenable number.

108428 is a deficient number, since it is larger than the sum of its proper divisors (81328).

108428 is a wasteful number, since it uses less digits than its factorization.

108428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27111 (or 27109 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 108428 is about 329.2840718893. The cubic root of 108428 is about 47.6848567564.

It can be divided in two parts, 10842 and 8, that multiplied together give a triangular number (86736 = T₄₁₆).

The spelling of 108428 in words is "one hundred eight thousand, four hundred twenty-eight".