18495849 has 4 divisors (see below), whose sum is σ = 24661136. Its totient is φ = 12330564.

The previous prime is 18495821. The next prime is 18495853. The reversal of 18495849 is 94859481.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 18495849 - 2⁸ = 18495593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18495798 and 18495807.

It is not an unprimeable number, because it can be changed into a prime (18495859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3082639 + ... + 3082644.

It is an arithmetic number, because the mean of its divisors is an integer number (6165284).

Almost surely, 2^18495849 is an apocalyptic number.

It is an amenable number.

18495849 is a deficient number, since it is larger than the sum of its proper divisors (6165287).

18495849 is an equidigital number, since it uses as much as digits as its factorization.

18495849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6165286.

The product of its digits is 414720, while the sum is 48.

The square root of 18495849 is about 4300.6800625017. The cubic root of 18495849 is about 264.4588410601.

The spelling of 18495849 in words is "eighteen million, four hundred ninety-five thousand, eight hundred forty-nine".