49678928 has 20 divisors (see below), whose sum is σ = 103657428. Its totient is φ = 22928640.

The previous prime is 49678927. The next prime is 49678931. The reversal of 49678928 is 82987694.

It can be written as a sum of positive squares in 2 ways, for example, as 7011904 + 42667024 = 2648^2 + 6532^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 49678928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49678927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119213 + ... + 119628.

Almost surely, 2^49678928 is an apocalyptic number.

It is an amenable number.

49678928 is an abundant number, since it is smaller than the sum of its proper divisors (53978500).

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

49678928 is a wasteful number, since it uses less digits than its factorization.

49678928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238862 (or 238856 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 53.

The square root of 49678928 is about 7048.3280286888. The cubic root of 49678928 is about 367.6128963464.

The spelling of 49678928 in words is "forty-nine million, six hundred seventy-eight thousand, nine hundred twenty-eight".