49691172 has 12 divisors (see below), whose sum is σ = 115946096. Its totient is φ = 16563720.

The previous prime is 49691167. The next prime is 49691179. The reversal of 49691172 is 27119694.

49691172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 49691172.

It is not an unprimeable number, because it can be changed into a prime (49691179) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2070454 + ... + 2070477.

Almost surely, 2^49691172 is an apocalyptic number.

It is an amenable number.

49691172 is an abundant number, since it is smaller than the sum of its proper divisors (66254924).

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

49691172 is a wasteful number, since it uses less digits than its factorization.

49691172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4140938 (or 4140936 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 49691172 is about 7049.1965499623. The cubic root of 49691172 is about 367.6430948145.

The spelling of 49691172 in words is "forty-nine million, six hundred ninety-one thousand, one hundred seventy-two".