1842222089 has 4 divisors (see below), whose sum is σ = 1901648640. Its totient is φ = 1782795540.

The previous prime is 1842222079. The next prime is 1842222091. The reversal of 1842222089 is 9802222481.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1842222089 - 2⁸ = 1842221833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1842222059) 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, 29713229 + ... + 29713290.

It is an arithmetic number, because the mean of its divisors is an integer number (475412160).

Almost surely, 2^1842222089 is an apocalyptic number.

It is an amenable number.

1842222089 is a deficient number, since it is larger than the sum of its proper divisors (59426551).

1842222089 is an equidigital number, since it uses as much as digits as its factorization.

1842222089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59426550.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 1842222089 is about 42921.1147222436. The cubic root of 1842222089 is about 1225.8782182791.

The spelling of 1842222089 in words is "one billion, eight hundred forty-two million, two hundred twenty-two thousand, eighty-nine".