18649048 has 32 divisors (see below), whose sum is σ = 38727360. Its totient is φ = 8347680.

The previous prime is 18649039. The next prime is 18649069. The reversal of 18649048 is 84094681.

It is a self number, because there is not a number n which added to its sum of digits gives 18649048.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4315 + ... + 7477.

It is an arithmetic number, because the mean of its divisors is an integer number (1210230).

Almost surely, 2^18649048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18649048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19363680).

18649048 is an abundant number, since it is smaller than the sum of its proper divisors (20078312).

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

18649048 is a wasteful number, since it uses less digits than its factorization.

18649048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247 (or 3243 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 18649048 is about 4318.4543531222. The cubic root of 18649048 is about 265.1869951089.

The spelling of 18649048 in words is "eighteen million, six hundred forty-nine thousand, forty-eight".