218027956 has 6 divisors (see below), whose sum is σ = 381548930. Its totient is φ = 109013976.

The previous prime is 218027947. The next prime is 218027959. The reversal of 218027956 is 659720812.

218027956 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 138532900 + 79495056 = 11770^2 + 8916^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218027959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27253491 + ... + 27253498.

Almost surely, 2^218027956 is an apocalyptic number.

It is an amenable number.

218027956 is a deficient number, since it is larger than the sum of its proper divisors (163520974).

218027956 is a wasteful number, since it uses less digits than its factorization.

218027956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54506993 (or 54506991 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 218027956 is about 14765.7697395022. The cubic root of 218027956 is about 601.8718910039.

The spelling of 218027956 in words is "two hundred eighteen million, twenty-seven thousand, nine hundred fifty-six".