49678938 has 48 divisors (see below), whose sum is σ = 111831720. Its totient is φ = 15925248.

The previous prime is 49678933. The next prime is 49678961. The reversal of 49678938 is 83987694.

49678938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 46744569 + 2934369 = 6837^2 + 1713^2 .

It is not an unprimeable number, because it can be changed into a prime (49678931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64218 + ... + 64986.

Almost surely, 2^49678938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49678938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55915860).

49678938 is an abundant number, since it is smaller than the sum of its proper divisors (62152782).

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

49678938 is a wasteful number, since it uses less digits than its factorization.

49678938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911 (or 908 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 49678938 is about 7048.3287380768. The cubic root of 49678938 is about 367.6129210123.

The spelling of 49678938 in words is "forty-nine million, six hundred seventy-eight thousand, nine hundred thirty-eight".