49218916 has 24 divisors (see below), whose sum is σ = 90006840. Its totient is φ = 23520000.

The previous prime is 49218913. The next prime is 49218941. The reversal of 49218916 is 61981294.

49218916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8386816 + 40832100 = 2896^2 + 6390^2 .

It is not an unprimeable number, because it can be changed into a prime (49218913) by changing a digit.

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, 9616 + ... + 13816.

It is an arithmetic number, because the mean of its divisors is an integer number (3750285).

Almost surely, 2^49218916 is an apocalyptic number.

It is an amenable number.

49218916 is a deficient number, since it is larger than the sum of its proper divisors (40787924).

49218916 is a wasteful number, since it uses less digits than its factorization.

49218916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335 (or 4333 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 49218916 is about 7015.6194309555. The cubic root of 49218916 is about 366.4747142215.

The spelling of 49218916 in words is "forty-nine million, two hundred eighteen thousand, nine hundred sixteen".