49813778 has 32 divisors (see below), whose sum is σ = 87284736. Its totient is φ = 20882448.

The previous prime is 49813739. The next prime is 49813789. The reversal of 49813778 is 87731894.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189275 + ... + 189537.

It is an arithmetic number, because the mean of its divisors is an integer number (2727648).

Almost surely, 2^49813778 is an apocalyptic number.

49813778 is a deficient number, since it is larger than the sum of its proper divisors (37470958).

49813778 is a wasteful number, since it uses less digits than its factorization.

49813778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518.

The product of its digits is 338688, while the sum is 47.

The square root of 49813778 is about 7057.8876443310. The cubic root of 49813778 is about 367.9452157341.

The spelling of 49813778 in words is "forty-nine million, eight hundred thirteen thousand, seven hundred seventy-eight".