2020402100 has 36 divisors (see below), whose sum is σ = 4491215148. Its totient is φ = 788448000.

The previous prime is 2020402079. The next prime is 2020402103. The reversal of 2020402100 is 12040202.

It can be written as a sum of positive squares in 6 ways, for example, as 953203876 + 1067198224 = 30874^2 + 32668^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020402103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242291 + ... + 250490.

Almost surely, 2^2020402100 is an apocalyptic number.

2020402100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020402100 is an abundant number, since it is smaller than the sum of its proper divisors (2470813048).

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

2020402100 is a wasteful number, since it uses less digits than its factorization.

2020402100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492836 (or 492829 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2020402100 is about 44948.8831896856. The cubic root of 2020402100 is about 1264.1907367522.

Adding to 2020402100 its reverse (12040202), we get a palindrome (2032442302).

The spelling of 2020402100 in words is "two billion, twenty million, four hundred two thousand, one hundred".