50045440 has 80 divisors (see below), whose sum is σ = 121753368. Its totient is φ = 19726336.

The previous prime is 50045419. The next prime is 50045453. The reversal of 50045440 is 4454005.

It can be written as a sum of positive squares in 4 ways, for example, as 36385024 + 13660416 = 6032^2 + 3696^2 .

It is a tau number, because it is divible by the number of its divisors (80).

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 7 ways as a sum of consecutive naturals, for example, 289194 + ... + 289366.

Almost surely, 2^50045440 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 50045440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60876684).

50045440 is an abundant number, since it is smaller than the sum of its proper divisors (71707928).

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

50045440 is a wasteful number, since it uses less digits than its factorization.

50045440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 50045440 is about 7074.2801753959. The cubic root of 50045440 is about 368.5147176675.

Adding to 50045440 its reverse (4454005), we get a palindrome (54499445).

The spelling of 50045440 in words is "fifty million, forty-five thousand, four hundred forty".