2100421716 has 48 divisors (see below), whose sum is σ = 5001796800. Its totient is φ = 685884672.

The previous prime is 2100421703. The next prime is 2100421721. The reversal of 2100421716 is 6171240012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107391 + ... + 125433.

It is an arithmetic number, because the mean of its divisors is an integer number (104204100).

Almost surely, 2^2100421716 is an apocalyptic number.

It is an amenable number.

2100421716 is an abundant number, since it is smaller than the sum of its proper divisors (2901375084).

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

2100421716 is a wasteful number, since it uses less digits than its factorization.

2100421716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18248 (or 18246 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 2100421716 is about 45830.3580173666. The cubic root of 2100421716 is about 1280.6648799998.

Adding to 2100421716 its reverse (6171240012), we get a palindrome (8271661728).

The spelling of 2100421716 in words is "two billion, one hundred million, four hundred twenty-one thousand, seven hundred sixteen".