18245803 has 8 divisors (see below), whose sum is σ = 18767936. Its totient is φ = 17728200.

The previous prime is 18245789. The next prime is 18245863. The reversal of 18245803 is 30854281.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18245803 is a prime.

It is a super-2 number, since 2×18245803² = 665818654229618, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (18245863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8068 + ... + 10078.

It is an arithmetic number, because the mean of its divisors is an integer number (2345992).

Almost surely, 2^18245803 is an apocalyptic number.

18245803 is a deficient number, since it is larger than the sum of its proper divisors (522133).

18245803 is a wasteful number, since it uses less digits than its factorization.

18245803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 18245803 is about 4271.5106227189. The cubic root of 18245803 is about 263.2616873222.

The spelling of 18245803 in words is "eighteen million, two hundred forty-five thousand, eight hundred three".