2195380387 has 4 divisors (see below), whose sum is σ = 2242090656. Its totient is φ = 2148670120.

The previous prime is 2195380379. The next prime is 2195380427. The reversal of 2195380387 is 7830835912.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2195380387 - 2³ = 2195380379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2195380487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23355064 + ... + 23355157.

It is an arithmetic number, because the mean of its divisors is an integer number (560522664).

Almost surely, 2^2195380387 is an apocalyptic number.

2195380387 is a deficient number, since it is larger than the sum of its proper divisors (46710269).

2195380387 is an equidigital number, since it uses as much as digits as its factorization.

2195380387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46710268.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 2195380387 is about 46854.8864794271. The cubic root of 2195380387 is about 1299.6804711731.

The spelling of 2195380387 in words is "two billion, one hundred ninety-five million, three hundred eighty thousand, three hundred eighty-seven".