50040144 has 120 divisors (see below), whose sum is σ = 174637632. Its totient is φ = 12994560.

The previous prime is 50040143. The next prime is 50040149. The reversal of 50040144 is 44104005.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50040143) 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, 8832 + ... + 13344.

Almost surely, 2^50040144 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 50040144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87318816).

50040144 is an abundant number, since it is smaller than the sum of its proper divisors (124597488).

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

50040144 is a wasteful number, since it uses less digits than its factorization.

50040144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545 (or 4536 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 50040144 is about 7073.9058517908. The cubic root of 50040144 is about 368.5017179963.

Adding to 50040144 its reverse (44104005), we get a palindrome (94144149).

The spelling of 50040144 in words is "fifty million, forty thousand, one hundred forty-four".