218479361 has 8 divisors (see below), whose sum is σ = 220191744. Its totient is φ = 216773280.

The previous prime is 218479357. The next prime is 218479399. The reversal of 218479361 is 163974812.

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

It is a cyclic number.

It is not a de Polignac number, because 218479361 - 2² = 218479357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (218472361) 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, 86036 + ... + 88538.

It is an arithmetic number, because the mean of its divisors is an integer number (27523968).

Almost surely, 2^218479361 is an apocalyptic number.

It is an amenable number.

218479361 is a deficient number, since it is larger than the sum of its proper divisors (1712383).

218479361 is a wasteful number, since it uses less digits than its factorization.

218479361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151.

The product of its digits is 72576, while the sum is 41.

The square root of 218479361 is about 14781.0473580190. The cubic root of 218479361 is about 602.2869764520.

The spelling of 218479361 in words is "two hundred eighteen million, four hundred seventy-nine thousand, three hundred sixty-one".