18412043 has 6 divisors (see below), whose sum is σ = 19937484. Its totient is φ = 16995576.

The previous prime is 18412039. The next prime is 18412049. The reversal of 18412043 is 34021481.

It is not a de Polignac number, because 18412043 - 2² = 18412039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18412049) 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 5 ways as a sum of consecutive naturals, for example, 54305 + ... + 54642.

It is an arithmetic number, because the mean of its divisors is an integer number (3322914).

Almost surely, 2^18412043 is an apocalyptic number.

18412043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

18412043 is a deficient number, since it is larger than the sum of its proper divisors (1525441).

18412043 is a wasteful number, since it uses less digits than its factorization.

18412043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108973 (or 108960 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 18412043 is about 4290.9256577107. The cubic root of 18412043 is about 264.0588090214.

The spelling of 18412043 in words is "eighteen million, four hundred twelve thousand, forty-three".