18849846 has 8 divisors (see below), whose sum is σ = 37699704. Its totient is φ = 6283280.

The previous prime is 18849833. The next prime is 18849871. The reversal of 18849846 is 64894881.

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

18849846 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 18849795 and 18849804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1570815 + ... + 1570826.

It is an arithmetic number, because the mean of its divisors is an integer number (4712463).

Almost surely, 2^18849846 is an apocalyptic number.

18849846 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18849846 is a wasteful number, since it uses less digits than its factorization.

18849846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141646.

The product of its digits is 442368, while the sum is 48.

The square root of 18849846 is about 4341.6409340248. The cubic root of 18849846 is about 266.1353730825.

The spelling of 18849846 in words is "eighteen million, eight hundred forty-nine thousand, eight hundred forty-six".