2194223689 has 8 divisors (see below), whose sum is σ = 2543004288. Its totient is φ = 1854273120.

The previous prime is 2194223671. The next prime is 2194223693. The reversal of 2194223689 is 9863224912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2194223689 - 2²¹ = 2192126537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2194223639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2206972 + ... + 2207965.

It is an arithmetic number, because the mean of its divisors is an integer number (317875536).

Almost surely, 2^2194223689 is an apocalyptic number.

It is an amenable number.

2194223689 is a deficient number, since it is larger than the sum of its proper divisors (348780599).

2194223689 is an equidigital number, since it uses as much as digits as its factorization.

2194223689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4415015.

The product of its digits is 373248, while the sum is 46.

The square root of 2194223689 is about 46842.5414447167. The cubic root of 2194223689 is about 1299.4521733175.

It can be divided in two parts, 2194223 and 689, that added together give a palindrome (2194912).

The spelling of 2194223689 in words is "two billion, one hundred ninety-four million, two hundred twenty-three thousand, six hundred eighty-nine".