49439238 has 16 divisors (see below), whose sum is σ = 99316800. Its totient is φ = 16406696.

The previous prime is 49439231. The next prime is 49439249. The reversal of 49439238 is 83293494.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 49439238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49439231) 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 7 ways as a sum of consecutive naturals, for example, 16788 + ... + 19511.

It is an arithmetic number, because the mean of its divisors is an integer number (6207300).

Almost surely, 2^49439238 is an apocalyptic number.

49439238 is an abundant number, since it is smaller than the sum of its proper divisors (49877562).

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

49439238 is a wasteful number, since it uses less digits than its factorization.

49439238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36531.

The product of its digits is 186624, while the sum is 42.

The square root of 49439238 is about 7031.3041464582. The cubic root of 49439238 is about 367.0207255902.

The spelling of 49439238 in words is "forty-nine million, four hundred thirty-nine thousand, two hundred thirty-eight".