2028620227 has 4 divisors (see below), whose sum is σ = 2029928040. Its totient is φ = 2027312416.

The previous prime is 2028620213. The next prime is 2028620311. The reversal of 2028620227 is 7220268202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2028620227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2028620207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651577 + ... + 654682.

It is an arithmetic number, because the mean of its divisors is an integer number (507482010).

Almost surely, 2^2028620227 is an apocalyptic number.

2028620227 is a deficient number, since it is larger than the sum of its proper divisors (1307813).

2028620227 is a wasteful number, since it uses less digits than its factorization.

2028620227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307812.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 2028620227 is about 45040.2067823850. The cubic root of 2028620227 is about 1265.9024794127.

Adding to 2028620227 its reverse (7220268202), we get a palindrome (9248888429).

The spelling of 2028620227 in words is "two billion, twenty-eight million, six hundred twenty thousand, two hundred twenty-seven".