104102028 has 36 divisors (see below), whose sum is σ = 263739840. Its totient is φ = 34622496.

The previous prime is 104102023. The next prime is 104102057. The reversal of 104102028 is 820201401.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 104102028.

It is not an unprimeable number, because it can be changed into a prime (104102023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14226 + ... + 20262.

Almost surely, 2^104102028 is an apocalyptic number.

104102028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

104102028 is an abundant number, since it is smaller than the sum of its proper divisors (159637812).

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

104102028 is a wasteful number, since it uses less digits than its factorization.

104102028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6526 (or 6521 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 104102028 is about 10203.0401351754. The cubic root of 104102028 is about 470.4206706001.

Adding to 104102028 its reverse (820201401), we get a palindrome (924303429).

The spelling of 104102028 in words is "one hundred four million, one hundred two thousand, twenty-eight".