10100028 has 24 divisors (see below), whose sum is σ = 23812432. Its totient is φ = 3331584.

The previous prime is 10100011. The next prime is 10100047. The reversal of 10100028 is 82000101.

It is a happy number.

10100028 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10099986 and 10100022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3175 + ... + 5502.

Almost surely, 2^10100028 is an apocalyptic number.

It is an amenable number.

10100028 is an abundant number, since it is smaller than the sum of its proper divisors (13712404).

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

10100028 is a wasteful number, since it uses less digits than its factorization.

10100028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8781 (or 8779 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 10100028 is about 3178.0541216285. The cubic root of 10100028 is about 216.1594330454.

Adding to 10100028 its reverse (82000101), we get a palindrome (92100129).

The spelling of 10100028 in words is "ten million, one hundred thousand, twenty-eight".