49131684 has 168 divisors, whose sum is σ = 154244160. Its totient is φ = 13390272.

The previous prime is 49131679. The next prime is 49131697. The reversal of 49131684 is 48613194.

49131684 is a `hidden beast` number, since 491 + 3 + 168 + 4 = 666.

49131684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 55 ways as a sum of consecutive naturals, for example, 591907 + ... + 591989.

It is an arithmetic number, because the mean of its divisors is an integer number (918120).

Almost surely, 2^49131684 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 49131684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77122080).

49131684 is an abundant number, since it is smaller than the sum of its proper divisors (105112476).

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

49131684 is a wasteful number, since it uses less digits than its factorization.

49131684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 124 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 49131684 is about 7009.3996889891. The cubic root of 49131684 is about 366.2580818805.

The spelling of 49131684 in words is "forty-nine million, one hundred thirty-one thousand, six hundred eighty-four".