218382364 has 12 divisors (see below), whose sum is σ = 388647000. Its totient is φ = 107340368.

The previous prime is 218382361. The next prime is 218382389. The reversal of 218382364 is 463283812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218382361) 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, 462439 + ... + 462910.

It is an arithmetic number, because the mean of its divisors is an integer number (32387250).

Almost surely, 2^218382364 is an apocalyptic number.

It is an amenable number.

218382364 is a deficient number, since it is larger than the sum of its proper divisors (170264636).

218382364 is a wasteful number, since it uses less digits than its factorization.

218382364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925412 (or 925410 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 218382364 is about 14777.7658663277. The cubic root of 218382364 is about 602.1978319867.

The spelling of 218382364 in words is "two hundred eighteen million, three hundred eighty-two thousand, three hundred sixty-four".