49059918 has 40 divisors (see below), whose sum is σ = 113488320. Its totient is φ = 15824160.

The previous prime is 49059917. The next prime is 49059929. The reversal of 49059918 is 81995094.

49059918 is a `hidden beast` number, since 49 + 0 + 599 + 18 = 666.

49059918 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 (49059917) 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 19 ways as a sum of consecutive naturals, for example, 138 + ... + 9906.

It is an arithmetic number, because the mean of its divisors is an integer number (2837208).

Almost surely, 2^49059918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49059918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56744160).

49059918 is an abundant number, since it is smaller than the sum of its proper divisors (64428402).

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

49059918 is a wasteful number, since it uses less digits than its factorization.

49059918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9814 (or 9805 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 49059918 is about 7004.2785495724. The cubic root of 49059918 is about 366.0796655393.

The spelling of 49059918 in words is "forty-nine million, fifty-nine thousand, nine hundred eighteen".