49447944 has 96 divisors (see below), whose sum is σ = 164848320. Its totient is φ = 13039488.

The previous prime is 49447919. The next prime is 49447949. The reversal of 49447944 is 44974494.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 49447944.

It is not an unprimeable number, because it can be changed into a prime (49447949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2779 + ... + 10325.

It is an arithmetic number, because the mean of its divisors is an integer number (1717170).

Almost surely, 2^49447944 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 49447944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82424160).

49447944 is an abundant number, since it is smaller than the sum of its proper divisors (115400376).

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

49447944 is a wasteful number, since it uses less digits than its factorization.

49447944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7579 (or 7572 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 49447944 is about 7031.9232077718. The cubic root of 49447944 is about 367.0422678242.

The spelling of 49447944 in words is "forty-nine million, four hundred forty-seven thousand, nine hundred forty-four".