102028056 has 64 divisors (see below), whose sum is σ = 275772000. Its totient is φ = 31269888.

The previous prime is 102028019. The next prime is 102028109. The reversal of 102028056 is 650820201.

It is a super-2 number, since 2×102028056² = 20819448422278272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108420 + ... + 109356.

Almost surely, 2^102028056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102028056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137886000).

102028056 is an abundant number, since it is smaller than the sum of its proper divisors (173743944).

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

102028056 is a wasteful number, since it uses less digits than its factorization.

102028056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308 (or 1304 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 102028056 is about 10100.8938218358. The cubic root of 102028056 is about 467.2757077498.

Adding to 102028056 its reverse (650820201), we get a palindrome (752848257).

The spelling of 102028056 in words is "one hundred two million, twenty-eight thousand, fifty-six".