2100355208 has 48 divisors (see below), whose sum is σ = 4585248720. Its totient is φ = 899343648.

The previous prime is 2100355207. The next prime is 2100355211. The reversal of 2100355208 is 8025530012.

It is a super-2 number, since 2×2100355208² = 8822983999545446528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2100355207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 683291 + ... + 686357.

It is an arithmetic number, because the mean of its divisors is an integer number (95526015).

Almost surely, 2^2100355208 is an apocalyptic number.

2100355208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2100355208 is an abundant number, since it is smaller than the sum of its proper divisors (2484893512).

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

2100355208 is a wasteful number, since it uses less digits than its factorization.

2100355208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834 (or 4823 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2100355208 is about 45829.6324227022. The cubic root of 2100355208 is about 1280.6513628160.

The spelling of 2100355208 in words is "two billion, one hundred million, three hundred fifty-five thousand, two hundred eight".