218084098 has 4 divisors (see below), whose sum is σ = 327126150. Its totient is φ = 109042048.

The previous prime is 218084093. The next prime is 218084099. The reversal of 218084098 is 890480812.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 169182049 + 48902049 = 13007^2 + 6993^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 218084098.

It is not an unprimeable number, because it can be changed into a prime (218084093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54521023 + ... + 54521026.

Almost surely, 2^218084098 is an apocalyptic number.

218084098 is a deficient number, since it is larger than the sum of its proper divisors (109042052).

218084098 is a wasteful number, since it uses less digits than its factorization.

218084098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109042051.

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 218084098 is about 14767.6707032626. The cubic root of 218084098 is about 601.9235470582.

It can be divided in two parts, 2 and 18084098, that multiplied together give a square (36168196 = 6014²).

The spelling of 218084098 in words is "two hundred eighteen million, eighty-four thousand, ninety-eight".