50440320 has 320 divisors, whose sum is σ = 207345600. Its totient is φ = 11446272.

The previous prime is 50440303. The next prime is 50440321. The reversal of 50440320 is 2304405.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 50440293 and 50440302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50440321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 362811 + ... + 362949.

It is an arithmetic number, because the mean of its divisors is an integer number (647955).

Almost surely, 2^50440320 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 50440320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103672800).

50440320 is an abundant number, since it is smaller than the sum of its proper divisors (156905280).

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

50440320 is a wasteful number, since it uses less digits than its factorization.

50440320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 50440320 is about 7102.1348902988. The cubic root of 50440320 is about 369.4814259540.

Adding to 50440320 its reverse (2304405), we get a palindrome (52744725).

The spelling of 50440320 in words is "fifty million, four hundred forty thousand, three hundred twenty".