18841423 has 8 divisors (see below), whose sum is σ = 19988640. Its totient is φ = 17698560.

The previous prime is 18841411. The next prime is 18841451. The reversal of 18841423 is 32414881.

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 18841423 - 2⁵ = 18841391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18841723) 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, 13603 + ... + 14923.

It is an arithmetic number, because the mean of its divisors is an integer number (2498580).

Almost surely, 2^18841423 is an apocalyptic number.

18841423 is a deficient number, since it is larger than the sum of its proper divisors (1147217).

18841423 is a wasteful number, since it uses less digits than its factorization.

18841423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177.

The product of its digits is 6144, while the sum is 31.

The square root of 18841423 is about 4340.6708006943. The cubic root of 18841423 is about 266.0957265654.

The spelling of 18841423 in words is "eighteen million, eight hundred forty-one thousand, four hundred twenty-three".