49671138 has 16 divisors (see below), whose sum is σ = 108373536. Its totient is φ = 15051840.

The previous prime is 49671133. The next prime is 49671163. The reversal of 49671138 is 83117694.

It is a junction number, because it is equal to n+sod(n) for n = 49671096 and 49671105.

It is not an unprimeable number, because it can be changed into a prime (49671133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376231 + ... + 376362.

It is an arithmetic number, because the mean of its divisors is an integer number (6773346).

Almost surely, 2^49671138 is an apocalyptic number.

49671138 is an abundant number, since it is smaller than the sum of its proper divisors (58702398).

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

49671138 is a wasteful number, since it uses less digits than its factorization.

49671138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752609.

The product of its digits is 36288, while the sum is 39.

The square root of 49671138 is about 7047.7753936969. The cubic root of 49671138 is about 367.5936805925.

It can be divided in two parts, 4967 and 1138, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 49671138 in words is "forty-nine million, six hundred seventy-one thousand, one hundred thirty-eight".