49091144 has 16 divisors (see below), whose sum is σ = 93783420. Its totient is φ = 24082240.

The previous prime is 49091137. The next prime is 49091149. The reversal of 49091144 is 44119094.

It can be written as a sum of positive squares in 2 ways, for example, as 44382244 + 4708900 = 6662^2 + 2170^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 49091144.

It is not an unprimeable number, because it can be changed into a prime (49091149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 57467 + ... + 58314.

Almost surely, 2^49091144 is an apocalyptic number.

It is an amenable number.

49091144 is a deficient number, since it is larger than the sum of its proper divisors (44692276).

49091144 is a wasteful number, since it uses less digits than its factorization.

49091144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115840 (or 115836 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 49091144 is about 7006.5072611109. The cubic root of 49091144 is about 366.1573173827.

The spelling of 49091144 in words is "forty-nine million, ninety-one thousand, one hundred forty-four".