49817844 has 18 divisors (see below), whose sum is σ = 125928530. Its totient is φ = 16605936.

The previous prime is 49817821. The next prime is 49817849. The reversal of 49817844 is 44871894.

49817844 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 only one way, i.e., 45968400 + 3849444 = 6780^2 + 1962^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 49817844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49817849) 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 5 ways as a sum of consecutive naturals, for example, 691879 + ... + 691950.

Almost surely, 2^49817844 is an apocalyptic number.

It is an amenable number.

49817844 is an abundant number, since it is smaller than the sum of its proper divisors (76110686).

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

49817844 is a wasteful number, since it uses less digits than its factorization.

49817844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383839 (or 1383834 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 49817844 is about 7058.1756849770. The cubic root of 49817844 is about 367.9552265156.

The spelling of 49817844 in words is "forty-nine million, eight hundred seventeen thousand, eight hundred forty-four".