49449139 has 8 divisors (see below), whose sum is σ = 50739120. Its totient is φ = 48174336.

The previous prime is 49449133. The next prime is 49449143. The reversal of 49449139 is 93194494.

It is a happy number.

49449139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49449139 - 2¹¹ = 49447091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49449095 and 49449104.

It is not an unprimeable number, because it can be changed into a prime (49449133) 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 7 ways as a sum of consecutive naturals, for example, 2959 + ... + 10375.

It is an arithmetic number, because the mean of its divisors is an integer number (6342390).

Almost surely, 2^49449139 is an apocalyptic number.

49449139 is a deficient number, since it is larger than the sum of its proper divisors (1289981).

49449139 is a wasteful number, since it uses less digits than its factorization.

49449139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7589.

The product of its digits is 139968, while the sum is 43.

The square root of 49449139 is about 7032.0081769008. The cubic root of 49449139 is about 367.0452245496.

The spelling of 49449139 in words is "forty-nine million, four hundred forty-nine thousand, one hundred thirty-nine".