49824778 has 8 divisors (see below), whose sum is σ = 74767140. Its totient is φ = 24902400.

The previous prime is 49824769. The next prime is 49824779. The reversal of 49824778 is 87742894.

It can be written as a sum of positive squares in 2 ways, for example, as 47983329 + 1841449 = 6927^2 + 1357^2 .

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

It is not an unprimeable number, because it can be changed into a prime (49824779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7008 + ... + 12196.

Almost surely, 2^49824778 is an apocalyptic number.

49824778 is a deficient number, since it is larger than the sum of its proper divisors (24942362).

49824778 is a wasteful number, since it uses less digits than its factorization.

49824778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9992.

The product of its digits is 903168, while the sum is 49.

The square root of 49824778 is about 7058.6668713008. Note that the first 3 decimals coincide. The cubic root of 49824778 is about 367.9722972609.

The spelling of 49824778 in words is "forty-nine million, eight hundred twenty-four thousand, seven hundred seventy-eight".