18886043 has 12 divisors (see below), whose sum is σ = 20939520. Its totient is φ = 17020080.

The previous prime is 18886003. The next prime is 18886051. The reversal of 18886043 is 34068881.

It is not a de Polignac number, because 18886043 - 2¹⁰ = 18885019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18885988 and 18886006.

It is not an unprimeable number, because it can be changed into a prime (18886003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14753 + ... + 15981.

It is an arithmetic number, because the mean of its divisors is an integer number (1744960).

Almost surely, 2^18886043 is an apocalyptic number.

18886043 is a deficient number, since it is larger than the sum of its proper divisors (2053477).

18886043 is a wasteful number, since it uses less digits than its factorization.

18886043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378 (or 1367 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 18886043 is about 4345.8075198978. The cubic root of 18886043 is about 266.3056157192.

The spelling of 18886043 in words is "eighteen million, eight hundred eighty-six thousand, forty-three".