49986816 has 144 divisors (see below), whose sum is σ = 149032128. Its totient is φ = 14745600.

The previous prime is 49986773. The next prime is 49986829. The reversal of 49986816 is 61868994.

It is a happy number.

49986816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 515280 + ... + 515376.

Almost surely, 2^49986816 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 49986816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74516064).

49986816 is an abundant number, since it is smaller than the sum of its proper divisors (99045312).

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

49986816 is a wasteful number, since it uses less digits than its factorization.

49986816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 174 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The square root of 49986816 is about 7070.1355008232. The cubic root of 49986816 is about 368.3707668368.

The spelling of 49986816 in words is "forty-nine million, nine hundred eighty-six thousand, eight hundred sixteen".