2187127338 has 64 divisors (see below), whose sum is σ = 4846113792. Its totient is φ = 652538880.

The previous prime is 2187127237. The next prime is 2187127351. The reversal of 2187127338 is 8337217812.

It is a self number, because there is not a number n which added to its sum of digits gives 2187127338.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1311181 + ... + 1312847.

It is an arithmetic number, because the mean of its divisors is an integer number (75720528).

Almost surely, 2^2187127338 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2187127338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2423056896).

2187127338 is an abundant number, since it is smaller than the sum of its proper divisors (2658986454).

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

2187127338 is a wasteful number, since it uses less digits than its factorization.

2187127338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979.

The product of its digits is 112896, while the sum is 42.

The square root of 2187127338 is about 46766.7332406274. The cubic root of 2187127338 is about 1298.0498052673.

The spelling of 2187127338 in words is "two billion, one hundred eighty-seven million, one hundred twenty-seven thousand, three hundred thirty-eight".