2188422399 has 4 divisors (see below), whose sum is σ = 2917896536. Its totient is φ = 1458948264.

The previous prime is 2188422391. The next prime is 2188422433. The reversal of 2188422399 is 9932248812.

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

It is not a de Polignac number, because 2188422399 - 2³ = 2188422391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188422391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364737064 + ... + 364737069.

It is an arithmetic number, because the mean of its divisors is an integer number (729474134).

Almost surely, 2^2188422399 is an apocalyptic number.

2188422399 is a deficient number, since it is larger than the sum of its proper divisors (729474137).

2188422399 is an equidigital number, since it uses as much as digits as its factorization.

2188422399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729474136.

The product of its digits is 497664, while the sum is 48.

The square root of 2188422399 is about 46780.5771554820. The cubic root of 2188422399 is about 1298.3059589228.

The spelling of 2188422399 in words is "two billion, one hundred eighty-eight million, four hundred twenty-two thousand, three hundred ninety-nine".