18448634 has 8 divisors (see below), whose sum is σ = 28316640. Its totient is φ = 9009756.

The previous prime is 18448631. The next prime is 18448637. The reversal of 18448634 is 43684481.

It is an interprime number because it is at equal distance from previous prime (18448631) and next prime (18448637).

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

It is not an unprimeable number, because it can be changed into a prime (18448631) 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, 107174 + ... + 107345.

It is an arithmetic number, because the mean of its divisors is an integer number (3539580).

Almost surely, 2^18448634 is an apocalyptic number.

18448634 is a deficient number, since it is larger than the sum of its proper divisors (9868006).

18448634 is a wasteful number, since it uses less digits than its factorization.

18448634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214564.

The product of its digits is 73728, while the sum is 38.

The square root of 18448634 is about 4295.1873067423. The cubic root of 18448634 is about 264.2336181986.

The spelling of 18448634 in words is "eighteen million, four hundred forty-eight thousand, six hundred thirty-four".