102206028 has 12 divisors (see below), whose sum is σ = 238480760. Its totient is φ = 34068672.

The previous prime is 102206009. The next prime is 102206033. The reversal of 102206028 is 820602201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 102205995 and 102206013.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4258573 + ... + 4258596.

Almost surely, 2^102206028 is an apocalyptic number.

It is an amenable number.

102206028 is an abundant number, since it is smaller than the sum of its proper divisors (136274732).

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

102206028 is a wasteful number, since it uses less digits than its factorization.

102206028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8517176 (or 8517174 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 102206028 is about 10109.6996988041. The cubic root of 102206028 is about 467.5472464094.

Adding to 102206028 its reverse (820602201), we get a palindrome (922808229).

The spelling of 102206028 in words is "one hundred two million, two hundred six thousand, twenty-eight".