49809806 has 16 divisors (see below), whose sum is σ = 76518000. Its totient is φ = 24309888.

The previous prime is 49809803. The next prime is 49809827. The reversal of 49809806 is 60890894.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49809803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16166 + ... + 18998.

It is an arithmetic number, because the mean of its divisors is an integer number (4782375).

Almost surely, 2^49809806 is an apocalyptic number.

49809806 is a deficient number, since it is larger than the sum of its proper divisors (26708194).

49809806 is a wasteful number, since it uses less digits than its factorization.

49809806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3043.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 49809806 is about 7057.6062514141. The cubic root of 49809806 is about 367.9354358612.

The spelling of 49809806 in words is "forty-nine million, eight hundred nine thousand, eight hundred six".