210000210028 has 18 divisors (see below), whose sum is σ = 427500427956. Its totient is φ = 90000089928.

The previous prime is 210000210019. The next prime is 210000210029. The reversal of 210000210028 is 820012000012.

It is a super-2 number, since 2×210000210028² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210000209993 and 210000210020.

It is not an unprimeable number, because it can be changed into a prime (210000210029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 535714626 + ... + 535715017.

Almost surely, 2^210000210028 is an apocalyptic number.

210000210028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

210000210028 is an abundant number, since it is smaller than the sum of its proper divisors (217500217928).

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

210000210028 is a wasteful number, since it uses less digits than its factorization.

210000210028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071429661 (or 1071429652 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The spelling of 210000210028 in words is "two hundred ten billion, two hundred ten thousand, twenty-eight".