18835043 has 2 divisors, whose sum is σ = 18835044. Its totient is φ = 18835042.

The previous prime is 18835039. The next prime is 18835051. The reversal of 18835043 is 34053881.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18835043 - 2² = 18835039 is a prime.

It is not a weakly prime, because it can be changed into another prime (18835013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9417521 + 9417522.

It is an arithmetic number, because the mean of its divisors is an integer number (9417522).

Almost surely, 2^18835043 is an apocalyptic number.

18835043 is a deficient number, since it is larger than the sum of its proper divisors (1).

18835043 is an equidigital number, since it uses as much as digits as its factorization.

18835043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 18835043 is about 4339.9358290187. The cubic root of 18835043 is about 266.0656884522.

The spelling of 18835043 in words is "eighteen million, eight hundred thirty-five thousand, forty-three".