2100206424 has 16 divisors (see below), whose sum is σ = 5250516120. Its totient is φ = 700068800.

The previous prime is 2100206377. The next prime is 2100206431. The reversal of 2100206424 is 4246020012.

It is a self number, because there is not a number n which added to its sum of digits gives 2100206424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43754277 + ... + 43754324.

Almost surely, 2^2100206424 is an apocalyptic number.

2100206424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2100206424 is an abundant number, since it is smaller than the sum of its proper divisors (3150309696).

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

2100206424 is a wasteful number, since it uses less digits than its factorization.

2100206424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87508610 (or 87508606 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2100206424 is about 45828.0091647019. The cubic root of 2100206424 is about 1280.6211227038.

Adding to 2100206424 its reverse (4246020012), we get a palindrome (6346226436).

The spelling of 2100206424 in words is "two billion, one hundred million, two hundred six thousand, four hundred twenty-four".