49898178 has 48 divisors (see below), whose sum is σ = 123080256. Its totient is φ = 14461920.

The previous prime is 49898159. The next prime is 49898207. The reversal of 49898178 is 87189894.

49898178 is a `hidden beast` number, since 498 + 9 + 81 + 78 = 666.

49898178 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 925 + ... + 10032.

It is an arithmetic number, because the mean of its divisors is an integer number (2564172).

Almost surely, 2^49898178 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49898178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61540128).

49898178 is an abundant number, since it is smaller than the sum of its proper divisors (73182078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49898178 is a wasteful number, since it uses less digits than its factorization.

49898178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10999 (or 10996 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 54.

The square root of 49898178 is about 7063.8642399185. The cubic root of 49898178 is about 368.1529029460.

The spelling of 49898178 in words is "forty-nine million, eight hundred ninety-eight thousand, one hundred seventy-eight".