2102012028 has 54 divisors (see below), whose sum is σ = 5607826224. Its totient is φ = 663789168.

The previous prime is 2102012027. The next prime is 2102012041. The reversal of 2102012028 is 8202102012.

It is a happy number.

2102012028 is digitally balanced in base 4, because in such base 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 (18).

It is a self number, because there is not a number n which added to its sum of digits gives 2102012028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102012027) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 67876 + ... + 93867.

Almost surely, 2^2102012028 is an apocalyptic number.

It is an amenable number.

2102012028 is an abundant number, since it is smaller than the sum of its proper divisors (3505814196).

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

2102012028 is a wasteful number, since it uses less digits than its factorization.

2102012028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161791 (or 161767 counting only the distinct ones).

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

The square root of 2102012028 is about 45847.7047189933. The cubic root of 2102012028 is about 1280.9880124000.

The spelling of 2102012028 in words is "two billion, one hundred two million, twelve thousand, twenty-eight".