18829066 has 4 divisors (see below), whose sum is σ = 28243602. Its totient is φ = 9414532.

The previous prime is 18829061. The next prime is 18829073. The reversal of 18829066 is 66092881.

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., 17682025 + 1147041 = 4205^2 + 1071^2 .

It is not an unprimeable number, because it can be changed into a prime (18829061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4707265 + ... + 4707268.

Almost surely, 2^18829066 is an apocalyptic number.

18829066 is a deficient number, since it is larger than the sum of its proper divisors (9414536).

18829066 is an equidigital number, since it uses as much as digits as its factorization.

18829066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9414535.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 18829066 is about 4339.2471697289. The cubic root of 18829066 is about 266.0375415761.

It can be divided in two parts, 188290 and 66, that added together give a square (188356 = 434²).

The spelling of 18829066 in words is "eighteen million, eight hundred twenty-nine thousand, sixty-six".