2099609380 has 48 divisors (see below), whose sum is σ = 4912379136. Its totient is φ = 747246080.

The previous prime is 2099609377. The next prime is 2099609411. The reversal of 2099609380 is 839069902.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2099609380.

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, 91189 + ... + 111868.

It is an arithmetic number, because the mean of its divisors is an integer number (102341232).

Almost surely, 2^2099609380 is an apocalyptic number.

2099609380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2099609380 is an abundant number, since it is smaller than the sum of its proper divisors (2812769756).

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

2099609380 is a wasteful number, since it uses less digits than its factorization.

2099609380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203124 (or 203122 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 2099609380 is about 45821.4947377320. The cubic root of 2099609380 is about 1280.4997600904.

The spelling of 2099609380 in words is "two billion, ninety-nine million, six hundred nine thousand, three hundred eighty".