49071728 has 10 divisors (see below), whose sum is σ = 95076504. Its totient is φ = 24535856.

The previous prime is 49071727. The next prime is 49071733. The reversal of 49071728 is 82717094.

49071728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 49071691 and 49071700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49071727) 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 as a sum of consecutive naturals, namely, 1533476 + ... + 1533507.

Almost surely, 2^49071728 is an apocalyptic number.

It is an amenable number.

49071728 is a deficient number, since it is larger than the sum of its proper divisors (46004776).

49071728 is a wasteful number, since it uses less digits than its factorization.

49071728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3066991 (or 3066985 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 49071728 is about 7005.1215549768. The cubic root of 49071728 is about 366.1090381524.

The spelling of 49071728 in words is "forty-nine million, seventy-one thousand, seven hundred twenty-eight".