102028 has 12 divisors (see below), whose sum is σ = 186480. Its totient is φ = 48752.

The previous prime is 102023. The next prime is 102031. The reversal of 102028 is 820201.

It is a junction number, because it is equal to n+sod(n) for n = 101999 and 102017.

It is not an unprimeable number, because it can be changed into a prime (102023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463 + ... + 646.

It is an arithmetic number, because the mean of its divisors is an integer number (15540).

2¹⁰²⁰²⁸ is an apocalyptic number.

It is an amenable number.

102028 is a deficient number, since it is larger than the sum of its proper divisors (84452).

102028 is a wasteful number, since it uses less digits than its factorization.

102028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136 (or 1134 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 102028 is about 319.4182211459. The cubic root of 102028 is about 46.7275622259.

Adding to 102028 its reverse (820201), we get a palindrome (922229).

The spelling of 102028 in words is "one hundred two thousand, twenty-eight".