49912728 has 64 divisors (see below), whose sum is σ = 130713600. Its totient is φ = 15863040.

The previous prime is 49912727. The next prime is 49912739. The reversal of 49912728 is 82721994.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 49912728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49912721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53853 + ... + 54771.

It is an arithmetic number, because the mean of its divisors is an integer number (2042400).

Almost surely, 2^49912728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49912728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65356800).

49912728 is an abundant number, since it is smaller than the sum of its proper divisors (80800872).

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

49912728 is a wasteful number, since it uses less digits than its factorization.

49912728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032 (or 1028 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 49912728 is about 7064.8940544073. The cubic root of 49912728 is about 368.1886831714.

The spelling of 49912728 in words is "forty-nine million, nine hundred twelve thousand, seven hundred twenty-eight".