18270022 has 8 divisors (see below), whose sum is σ = 27428256. Its totient is φ = 9127272.

The previous prime is 18270013. The next prime is 18270023. The reversal of 18270022 is 22007281.

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

It is a junction number, because it is equal to n+sod(n) for n = 18269975 and 18270002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18270023) 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, 238 + ... + 6049.

It is an arithmetic number, because the mean of its divisors is an integer number (3428532).

Almost surely, 2^18270022 is an apocalyptic number.

18270022 is a deficient number, since it is larger than the sum of its proper divisors (9158234).

18270022 is a wasteful number, since it uses less digits than its factorization.

18270022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7742.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 18270022 is about 4274.3446281272. The cubic root of 18270022 is about 263.3781180396.

The spelling of 18270022 in words is "eighteen million, two hundred seventy thousand, twenty-two".