218040002 has 8 divisors (see below), whose sum is σ = 328464396. Its totient is φ = 108551872.

The previous prime is 218039993. The next prime is 218040049. The reversal of 218040002 is 200040812.

It can be written as a sum of positive squares in 2 ways, for example, as 217887121 + 152881 = 14761^2 + 391^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233483 + ... + 234414.

Almost surely, 2^218040002 is an apocalyptic number.

218040002 is a deficient number, since it is larger than the sum of its proper divisors (110424394).

218040002 is a wasteful number, since it uses less digits than its factorization.

218040002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468132.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 218040002 is about 14766.1776367481. The cubic root of 218040002 is about 601.8829752328.

Adding to 218040002 its reverse (200040812), we get a palindrome (418080814).

The spelling of 218040002 in words is "two hundred eighteen million, forty thousand, two".