18789241 has 4 divisors (see below), whose sum is σ = 18802000. Its totient is φ = 18776484.

The previous prime is 18789223. The next prime is 18789247. The reversal of 18789241 is 14298781.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18789241 - 2⁹ = 18788729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18789194 and 18789203.

It is not an unprimeable number, because it can be changed into a prime (18789247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3831 + ... + 7228.

It is an arithmetic number, because the mean of its divisors is an integer number (4700500).

Almost surely, 2^18789241 is an apocalyptic number.

It is an amenable number.

18789241 is a deficient number, since it is larger than the sum of its proper divisors (12759).

18789241 is a wasteful number, since it uses less digits than its factorization.

18789241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12758.

The product of its digits is 32256, while the sum is 40.

The square root of 18789241 is about 4334.6558110189. The cubic root of 18789241 is about 265.8498455320.

The spelling of 18789241 in words is "eighteen million, seven hundred eighty-nine thousand, two hundred forty-one".