18002230422 has 16 divisors (see below), whose sum is σ = 39277593792. Its totient is φ = 5455221320.

The previous prime is 18002230417. The next prime is 18002230423. The reversal of 18002230422 is 22403220081.

It is a junction number, because it is equal to n+sod(n) for n = 18002230392 and 18002230401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18002230423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136380468 + ... + 136380599.

It is an arithmetic number, because the mean of its divisors is an integer number (2454849612).

Almost surely, 2^18002230422 is an apocalyptic number.

18002230422 is an abundant number, since it is smaller than the sum of its proper divisors (21275363370).

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

18002230422 is a wasteful number, since it uses less digits than its factorization.

18002230422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272761083.

The product of its (nonzero) digits is 1536, while the sum is 24.

The spelling of 18002230422 in words is "eighteen billion, two million, two hundred thirty thousand, four hundred twenty-two".