49871648 has 48 divisors (see below), whose sum is σ = 103352760. Its totient is φ = 23654400.

The previous prime is 49871617. The next prime is 49871663. The reversal of 49871648 is 84617894.

It can be written as a sum of positive squares in 4 ways, for example, as 21270544 + 28601104 = 4612^2 + 5348^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56168 + ... + 57048.

Almost surely, 2^49871648 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 49871648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51676380).

49871648 is an abundant number, since it is smaller than the sum of its proper divisors (53481112).

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

49871648 is a wasteful number, since it uses less digits than its factorization.

49871648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981 (or 973 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 49871648 is about 7061.9861228977. The cubic root of 49871648 is about 368.0876445310.

The spelling of 49871648 in words is "forty-nine million, eight hundred seventy-one thousand, six hundred forty-eight".