18227202 has 16 divisors (see below), whose sum is σ = 41662272. Its totient is φ = 5207760.

The previous prime is 18227197. The next prime is 18227203. The reversal of 18227202 is 20272281.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18227203) 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, 216949 + ... + 217032.

It is an arithmetic number, because the mean of its divisors is an integer number (2603892).

Almost surely, 2^18227202 is an apocalyptic number.

18227202 is an abundant number, since it is smaller than the sum of its proper divisors (23435070).

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

18227202 is a wasteful number, since it uses less digits than its factorization.

18227202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433993.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 18227202 is about 4269.3327347491. The cubic root of 18227202 is about 263.1721946742.

Adding to 18227202 its reverse (20272281), we get a palindrome (38499483).

The spelling of 18227202 in words is "eighteen million, two hundred twenty-seven thousand, two hundred two".