49578728 has 16 divisors (see below), whose sum is σ = 93065760. Its totient is φ = 24761200.

The previous prime is 49578701. The next prime is 49578751. The reversal of 49578728 is 82787594.

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, 5243 + ... + 11253.

It is an arithmetic number, because the mean of its divisors is an integer number (5816610).

Almost surely, 2^49578728 is an apocalyptic number.

It is an amenable number.

49578728 is a deficient number, since it is larger than the sum of its proper divisors (43487032).

49578728 is a wasteful number, since it uses less digits than its factorization.

49578728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7048 (or 7044 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 50.

The square root of 49578728 is about 7041.2163721902. The cubic root of 49578728 is about 367.3655775054.

The spelling of 49578728 in words is "forty-nine million, five hundred seventy-eight thousand, seven hundred twenty-eight".