2028170020 has 24 divisors (see below), whose sum is σ = 4298966784. Its totient is φ = 803685216.

The previous prime is 2028169987. The next prime is 2028170033. The reversal of 2028170020 is 200718202.

It is a super-2 number, since 2×2028170020² = 8226947260053600800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2028169973 and 2028170000.

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, 471732 + ... + 476011.

It is an arithmetic number, because the mean of its divisors is an integer number (179123616).

Almost surely, 2^2028170020 is an apocalyptic number.

2028170020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2028170020 is an abundant number, since it is smaller than the sum of its proper divisors (2270796764).

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

2028170020 is a wasteful number, since it uses less digits than its factorization.

2028170020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947859 (or 947857 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 2028170020 is about 45035.2086705502. The cubic root of 2028170020 is about 1265.8088262135.

Adding to 2028170020 its reverse (200718202), we get a palindrome (2228888222).

The spelling of 2028170020 in words is "two billion, twenty-eight million, one hundred seventy thousand, twenty".