49639166 has 8 divisors (see below), whose sum is σ = 74526264. Its totient is φ = 24797080.

The previous prime is 49639141. The next prime is 49639169. The reversal of 49639166 is 66193694.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49639169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8345 + ... + 12996.

It is an arithmetic number, because the mean of its divisors is an integer number (9315783).

Almost surely, 2^49639166 is an apocalyptic number.

49639166 is a deficient number, since it is larger than the sum of its proper divisors (24887098).

49639166 is a wasteful number, since it uses less digits than its factorization.

49639166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22506.

The product of its digits is 209952, while the sum is 44.

The square root of 49639166 is about 7045.5067951142. The cubic root of 49639166 is about 367.5147935489.

The spelling of 49639166 in words is "forty-nine million, six hundred thirty-nine thousand, one hundred sixty-six".