49991824 has 20 divisors (see below), whose sum is σ = 100200060. Its totient is φ = 24133760.

The previous prime is 49991819. The next prime is 49991839. The reversal of 49991824 is 42819994.

It can be written as a sum of positive squares in 2 ways, for example, as 37601424 + 12390400 = 6132^2 + 3520^2 .

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, 53407 + ... + 54334.

It is an arithmetic number, because the mean of its divisors is an integer number (5010003).

Almost surely, 2^49991824 is an apocalyptic number.

It is an amenable number.

49991824 is an abundant number, since it is smaller than the sum of its proper divisors (50208236).

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

49991824 is a wasteful number, since it uses less digits than its factorization.

49991824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107778 (or 107772 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 49991824 is about 7070.4896577253. The cubic root of 49991824 is about 368.3830683417.

The spelling of 49991824 in words is "forty-nine million, nine hundred ninety-one thousand, eight hundred twenty-four".