50144240 has 40 divisors (see below), whose sum is σ = 117263328. Its totient is φ = 19941120.

The previous prime is 50144239. The next prime is 50144243. The reversal of 50144240 is 4244105.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50144243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12749 + ... + 16211.

Almost surely, 2^50144240 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 50144240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58631664).

50144240 is an abundant number, since it is smaller than the sum of its proper divisors (67119088).

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

50144240 is a wasteful number, since it uses less digits than its factorization.

50144240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3657 (or 3651 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 50144240 is about 7081.2597749271. The cubic root of 50144240 is about 368.7570662248.

Adding to 50144240 its reverse (4244105), we get a palindrome (54388345).

The spelling of 50144240 in words is "fifty million, one hundred forty-four thousand, two hundred forty".