49705990 has 16 divisors (see below), whose sum is σ = 93361248. Its totient is φ = 19017856.

The previous prime is 49705987. The next prime is 49705991. The reversal of 49705990 is 9950794.

49705990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49705991) 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 7 ways as a sum of consecutive naturals, for example, 107827 + ... + 108286.

It is an arithmetic number, because the mean of its divisors is an integer number (5835078).

Almost surely, 2^49705990 is an apocalyptic number.

49705990 is a deficient number, since it is larger than the sum of its proper divisors (43655258).

49705990 is a wasteful number, since it uses less digits than its factorization.

49705990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216143.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 49705990 is about 7050.2475133856. The cubic root of 49705990 is about 367.6796351344.

The spelling of 49705990 in words is "forty-nine million, seven hundred five thousand, nine hundred ninety".