49391616 has 48 divisors (see below), whose sum is σ = 131695200. Its totient is φ = 16461824.

The previous prime is 49391599. The next prime is 49391627. The reversal of 49391616 is 61619394.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2125 + ... + 10163.

It is an arithmetic number, because the mean of its divisors is an integer number (2743650).

Almost surely, 2^49391616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49391616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65847600).

49391616 is an abundant number, since it is smaller than the sum of its proper divisors (82303584).

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

49391616 is an equidigital number, since it uses as much as digits as its factorization.

49391616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8064 (or 8044 counting only the distinct ones).

The product of its digits is 34992, while the sum is 39.

The square root of 49391616 is about 7027.9169033221. The cubic root of 49391616 is about 366.9028443509.

It can be divided in two parts, 4939 and 1616, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 49391616 in words is "forty-nine million, three hundred ninety-one thousand, six hundred sixteen".