2238227181 has 16 divisors (see below), whose sum is σ = 3321976000. Its totient is φ = 1489413744.

The previous prime is 2238227171. The next prime is 2238227203. The reversal of 2238227181 is 1817228322.

2238227181 is a `hidden beast` number, since 2 + 2 + 382 + 271 + 8 + 1 = 666.

It is not a de Polignac number, because 2238227181 - 2¹⁹ = 2237702893 is a prime.

It is a super-4 number, since 4×2238227181⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238227111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61006 + ... + 90543.

It is an arithmetic number, because the mean of its divisors is an integer number (207623500).

Almost surely, 2^2238227181 is an apocalyptic number.

It is an amenable number.

2238227181 is a deficient number, since it is larger than the sum of its proper divisors (1083748819).

2238227181 is a wasteful number, since it uses less digits than its factorization.

2238227181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152105 (or 152099 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 2238227181 is about 47309.9057386505. The cubic root of 2238227181 is about 1308.0812538952.

The spelling of 2238227181 in words is "two billion, two hundred thirty-eight million, two hundred twenty-seven thousand, one hundred eighty-one".