49439860 has 12 divisors (see below), whose sum is σ = 103823748. Its totient is φ = 19775936.

The previous prime is 49439851. The next prime is 49439879. The reversal of 49439860 is 6893494.

49439860 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 2 ways, for example, as 22524516 + 26915344 = 4746^2 + 5188^2 .

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 3 ways as a sum of consecutive naturals, for example, 1235977 + ... + 1236016.

It is an arithmetic number, because the mean of its divisors is an integer number (8651979).

Almost surely, 2^49439860 is an apocalyptic number.

It is an amenable number.

49439860 is an abundant number, since it is smaller than the sum of its proper divisors (54383888).

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

49439860 is a wasteful number, since it uses less digits than its factorization.

49439860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472002 (or 2472000 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 49439860 is about 7031.3483770896. The cubic root of 49439860 is about 367.0222647586.

The spelling of 49439860 in words is "forty-nine million, four hundred thirty-nine thousand, eight hundred sixty".