18010802 has 4 divisors (see below), whose sum is σ = 27016206. Its totient is φ = 9005400.

The previous prime is 18010787. The next prime is 18010819. The reversal of 18010802 is 20801081.

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., 12952801 + 5058001 = 3599^2 + 2249^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4502699 + ... + 4502702.

Almost surely, 2^18010802 is an apocalyptic number.

18010802 is a deficient number, since it is larger than the sum of its proper divisors (9005404).

18010802 is an equidigital number, since it uses as much as digits as its factorization.

18010802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9005403.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 18010802 is about 4243.9135240954. The cubic root of 18010802 is about 262.1265534719.

Adding to 18010802 its reverse (20801081), we get a palindrome (38811883).

The spelling of 18010802 in words is "eighteen million, ten thousand, eight hundred two".