49161042 has 96 divisors (see below), whose sum is σ = 131414400. Its totient is φ = 12962304.

The previous prime is 49161041. The next prime is 49161053. The reversal of 49161042 is 24016194.

49161042 is a `hidden beast` number, since 4 + 9 + 1 + 610 + 42 = 666.

49161042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 49160997 and 49161015.

It is not an unprimeable number, because it can be changed into a prime (49161041) 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 47 ways as a sum of consecutive naturals, for example, 126184 + ... + 126572.

It is an arithmetic number, because the mean of its divisors is an integer number (1368900).

Almost surely, 2^49161042 is an apocalyptic number.

49161042 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 49161042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65707200).

49161042 is an abundant number, since it is smaller than the sum of its proper divisors (82253358).

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

49161042 is a wasteful number, since it uses less digits than its factorization.

49161042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 49161042 is about 7011.4935641417. The cubic root of 49161042 is about 366.3310182758.

The spelling of 49161042 in words is "forty-nine million, one hundred sixty-one thousand, forty-two".