49439616 has 32 divisors (see below), whose sum is σ = 131325000. Its totient is φ = 16479744.

The previous prime is 49439609. The next prime is 49439617. The reversal of 49439616 is 61693494.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49439617) 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, 63991 + ... + 64758.

Almost surely, 2^49439616 is an apocalyptic number.

It is an amenable number.

49439616 is an abundant number, since it is smaller than the sum of its proper divisors (81885384).

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

49439616 is a wasteful number, since it uses less digits than its factorization.

49439616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128766 (or 128754 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 49439616 is about 7031.3310261998. The cubic root of 49439616 is about 367.0216609706.

The spelling of 49439616 in words is "forty-nine million, four hundred thirty-nine thousand, six hundred sixteen".