48531728 has 20 divisors (see below), whose sum is σ = 107463360. Its totient is φ = 20799264.

The previous prime is 48531727. The next prime is 48531731. The reversal of 48531728 is 82713584.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 48531691 and 48531700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48531727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216548 + ... + 216771.

It is an arithmetic number, because the mean of its divisors is an integer number (5373168).

Almost surely, 2^48531728 is an apocalyptic number.

It is an amenable number.

48531728 is an abundant number, since it is smaller than the sum of its proper divisors (58931632).

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

48531728 is a wasteful number, since it uses less digits than its factorization.

48531728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433334 (or 433328 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 48531728 is about 6966.4717038110. The cubic root of 48531728 is about 364.7611573114.

The spelling of 48531728 in words is "forty-eight million, five hundred thirty-one thousand, seven hundred twenty-eight".