49161288 has 64 divisors (see below), whose sum is σ = 138424320. Its totient is φ = 14414400.

The previous prime is 49161269. The next prime is 49161353. The reversal of 49161288 is 88216194.

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, 5181 + ... + 11187.

It is an arithmetic number, because the mean of its divisors is an integer number (2162880).

Almost surely, 2^49161288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49161288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69212160).

49161288 is an abundant number, since it is smaller than the sum of its proper divisors (89263032).

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

49161288 is a wasteful number, since it uses less digits than its factorization.

49161288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6058 (or 6054 counting only the distinct ones).

The product of its digits is 27648, while the sum is 39.

The square root of 49161288 is about 7011.5111067444. The cubic root of 49161288 is about 366.3316293103.

The spelling of 49161288 in words is "forty-nine million, one hundred sixty-one thousand, two hundred eighty-eight".