18049835 has 16 divisors (see below), whose sum is σ = 23123232. Its totient is φ = 13478400.

The previous prime is 18049831. The next prime is 18049853. The reversal of 18049835 is 53894081.

It is not a de Polignac number, because 18049835 - 2² = 18049831 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (18049831) 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 in 15 ways as a sum of consecutive naturals, for example, 10325 + ... + 11945.

It is an arithmetic number, because the mean of its divisors is an integer number (1445202).

Almost surely, 2^18049835 is an apocalyptic number.

18049835 is a deficient number, since it is larger than the sum of its proper divisors (5073397).

18049835 is a wasteful number, since it uses less digits than its factorization.

18049835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 18049835 is about 4248.5097387202. The cubic root of 18049835 is about 262.3157770158.

The spelling of 18049835 in words is "eighteen million, forty-nine thousand, eight hundred thirty-five".