49781144 has 32 divisors (see below), whose sum is σ = 106972320. Its totient is φ = 21275136.

The previous prime is 49781113. The next prime is 49781161. The reversal of 49781144 is 44118794.

It is a junction number, because it is equal to n+sod(n) for n = 49781098 and 49781107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23222 + ... + 25274.

It is an arithmetic number, because the mean of its divisors is an integer number (3342885).

Almost surely, 2^49781144 is an apocalyptic number.

It is an amenable number.

49781144 is an abundant number, since it is smaller than the sum of its proper divisors (57191176).

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

49781144 is a wasteful number, since it uses less digits than its factorization.

49781144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499 (or 2495 counting only the distinct ones).

The product of its digits is 32256, while the sum is 38.

The square root of 49781144 is about 7055.5753840491. The cubic root of 49781144 is about 367.8648487638.

The spelling of 49781144 in words is "forty-nine million, seven hundred eighty-one thousand, one hundred forty-four".