18845541 has 40 divisors (see below), whose sum is σ = 33093984. Its totient is φ = 10536480.

The previous prime is 18845531. The next prime is 18845569. The reversal of 18845541 is 14554881.

It is not a de Polignac number, because 18845541 - 2⁵ = 18845509 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18845496 and 18845505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18845501) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10770 + ... + 12396.

Almost surely, 2^18845541 is an apocalyptic number.

18845541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18845541 is a deficient number, since it is larger than the sum of its proper divisors (14248443).

18845541 is a wasteful number, since it uses less digits than its factorization.

18845541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663 (or 1654 counting only the distinct ones).

The product of its digits is 25600, while the sum is 36.

The square root of 18845541 is about 4341.1451254249. The cubic root of 18845541 is about 266.1151112014.

The spelling of 18845541 in words is "eighteen million, eight hundred forty-five thousand, five hundred forty-one".