49919728 has 20 divisors (see below), whose sum is σ = 97317928. Its totient is φ = 24805440.

The previous prime is 49919719. The next prime is 49919731. The reversal of 49919728 is 82791994.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6963 + ... + 12178.

Almost surely, 2^49919728 is an apocalyptic number.

It is an amenable number.

49919728 is a deficient number, since it is larger than the sum of its proper divisors (47398200).

49919728 is a wasteful number, since it uses less digits than its factorization.

49919728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19312 (or 19306 counting only the distinct ones).

The product of its digits is 326592, while the sum is 49.

The square root of 49919728 is about 7065.3894443265. The cubic root of 49919728 is about 368.2058945482.

The spelling of 49919728 in words is "forty-nine million, nine hundred nineteen thousand, seven hundred twenty-eight".