2100736988 has 24 divisors (see below), whose sum is σ = 4448620512. Its totient is φ = 847355904.

The previous prime is 2100736931. The next prime is 2100736997. The reversal of 2100736988 is 8896370012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2206181 + ... + 2207132.

It is an arithmetic number, because the mean of its divisors is an integer number (185359188).

Almost surely, 2^2100736988 is an apocalyptic number.

2100736988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2100736988 is an abundant number, since it is smaller than the sum of its proper divisors (2347883524).

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

2100736988 is a wasteful number, since it uses less digits than its factorization.

2100736988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413341 (or 4413339 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 2100736988 is about 45833.7974424987. The cubic root of 2100736988 is about 1280.7289524628.

The spelling of 2100736988 in words is "two billion, one hundred million, seven hundred thirty-six thousand, nine hundred eighty-eight".