18485678 has 8 divisors (see below), whose sum is σ = 28014672. Its totient is φ = 9147456.

The previous prime is 18485671. The next prime is 18485713. The reversal of 18485678 is 87658481.

It is a happy number.

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

It is a super-2 number, since 2×18485678² = 683440582239368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18485671) 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 3 ways as a sum of consecutive naturals, for example, 47450 + ... + 47837.

It is an arithmetic number, because the mean of its divisors is an integer number (3501834).

Almost surely, 2^18485678 is an apocalyptic number.

18485678 is a deficient number, since it is larger than the sum of its proper divisors (9528994).

18485678 is an equidigital number, since it uses as much as digits as its factorization.

18485678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95386.

The product of its digits is 430080, while the sum is 47.

The square root of 18485678 is about 4299.4974124890. The cubic root of 18485678 is about 264.4103562340.

The spelling of 18485678 in words is "eighteen million, four hundred eighty-five thousand, six hundred seventy-eight".