18000802 has 8 divisors (see below), whose sum is σ = 27027612. Its totient is φ = 8991600.

The previous prime is 18000797. The next prime is 18000803. The reversal of 18000802 is 20800081.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14356521 + 3644281 = 3789^2 + 1909^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 18000802.

It is not an unprimeable number, because it can be changed into a prime (18000803) 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 3 ways as a sum of consecutive naturals, for example, 1449 + ... + 6172.

Almost surely, 2^18000802 is an apocalyptic number.

18000802 is a deficient number, since it is larger than the sum of its proper divisors (9026810).

18000802 is a wasteful number, since it uses less digits than its factorization.

18000802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8804.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 18000802 is about 4242.7352026729. The cubic root of 18000802 is about 262.0780316494.

Adding to 18000802 its reverse (20800081), we get a palindrome (38800883).

The spelling of 18000802 in words is "eighteen million, eight hundred two", and thus it is an aban number.