18636098 has 16 divisors (see below), whose sum is σ = 30232440. Its totient is φ = 8564736.

The previous prime is 18636091. The next prime is 18636119. The reversal of 18636098 is 89063681.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17952169 + 683929 = 4237^2 + 827^2 .

It is not an unprimeable number, because it can be changed into a prime (18636091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5288 + ... + 8076.

Almost surely, 2^18636098 is an apocalyptic number.

18636098 is a deficient number, since it is larger than the sum of its proper divisors (11596342).

18636098 is a wasteful number, since it uses less digits than its factorization.

18636098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 18636098 is about 4316.9547136842. The cubic root of 18636098 is about 265.1255984664.

The spelling of 18636098 in words is "eighteen million, six hundred thirty-six thousand, ninety-eight".