18483819 has 8 divisors (see below), whose sum is σ = 24982992. Its totient is φ = 12153600.

The previous prime is 18483809. The next prime is 18483821. The reversal of 18483819 is 91838481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18483819 - 2⁷ = 18483691 is a prime.

It is a super-2 number, since 2×18483819² = 683303129649522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18483809) 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 7 ways as a sum of consecutive naturals, for example, 41982 + ... + 42419.

It is an arithmetic number, because the mean of its divisors is an integer number (3122874).

Almost surely, 2^18483819 is an apocalyptic number.

18483819 is a deficient number, since it is larger than the sum of its proper divisors (6499173).

18483819 is an equidigital number, since it uses as much as digits as its factorization.

18483819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84477.

The product of its digits is 55296, while the sum is 42.

The square root of 18483819 is about 4299.2812189946. The cubic root of 18483819 is about 264.4014925192.

The spelling of 18483819 in words is "eighteen million, four hundred eighty-three thousand, eight hundred nineteen".