2109948388 has 6 divisors (see below), whose sum is σ = 3692409686. Its totient is φ = 1054974192.

The previous prime is 2109948361. The next prime is 2109948397. The reversal of 2109948388 is 8838499012.

It can be written as a sum of positive squares in only one way, i.e., 1507147684 + 602800704 = 38822^2 + 24552^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263743545 + ... + 263743552.

Almost surely, 2^2109948388 is an apocalyptic number.

It is an amenable number.

2109948388 is a deficient number, since it is larger than the sum of its proper divisors (1582461298).

2109948388 is a wasteful number, since it uses less digits than its factorization.

2109948388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527487101 (or 527487099 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 2109948388 is about 45934.1745109238. The cubic root of 2109948388 is about 1282.5981544799.

The spelling of 2109948388 in words is "two billion, one hundred nine million, nine hundred forty-eight thousand, three hundred eighty-eight".