50000440 has 64 divisors (see below), whose sum is σ = 129231360. Its totient is φ = 17055360.

The previous prime is 50000429. The next prime is 50000449. The reversal of 50000440 is 4400005.

It is a self number, because there is not a number n which added to its sum of digits gives 50000440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50000449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78925 + ... + 79555.

It is an arithmetic number, because the mean of its divisors is an integer number (2019240).

Almost surely, 2^50000440 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 50000440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64615680).

50000440 is an abundant number, since it is smaller than the sum of its proper divisors (79230920).

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

50000440 is a wasteful number, since it uses less digits than its factorization.

50000440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 50000440 is about 7071.0989244954. The cubic root of 50000440 is about 368.4042305101.

Adding to 50000440 its reverse (4400005), we get a palindrome (54400445).

The spelling of 50000440 in words is "fifty million, four hundred forty", and thus it is an aban number.