2100020862 has 8 divisors (see below), whose sum is σ = 4200041736. Its totient is φ = 700006952.

The previous prime is 2100020851. The next prime is 2100020869. The reversal of 2100020862 is 2680200012.

It is a sphenic number, since it is the product of 3 distinct primes.

2100020862 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100020869) 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, 175001733 + ... + 175001744.

It is an arithmetic number, because the mean of its divisors is an integer number (525005217).

Almost surely, 2^2100020862 is an apocalyptic number.

2100020862 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2100020862 is a wasteful number, since it uses less digits than its factorization.

2100020862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350003482.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 2100020862 is about 45825.9845720744. The cubic root of 2100020862 is about 1280.5834055199.

Adding to 2100020862 its reverse (2680200012), we get a palindrome (4780220874).

The spelling of 2100020862 in words is "two billion, one hundred million, twenty thousand, eight hundred sixty-two".