18885541 has 8 divisors (see below), whose sum is σ = 19584000. Its totient is φ = 18192720.

The previous prime is 18885527. The next prime is 18885569. The reversal of 18885541 is 14558881.

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

It is a cyclic number.

It is not a de Polignac number, because 18885541 - 2⁵ = 18885509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18885494 and 18885503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18885511) 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, 6135 + ... + 8683.

It is an arithmetic number, because the mean of its divisors is an integer number (2448000).

Almost surely, 2^18885541 is an apocalyptic number.

It is an amenable number.

18885541 is a deficient number, since it is larger than the sum of its proper divisors (698459).

18885541 is a wasteful number, since it uses less digits than its factorization.

18885541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819.

The product of its digits is 51200, while the sum is 40.

The square root of 18885541 is about 4345.7497626992. The cubic root of 18885541 is about 266.3032561883.

The spelling of 18885541 in words is "eighteen million, eight hundred eighty-five thousand, five hundred forty-one".