500138140 has 48 divisors (see below), whose sum is σ = 1108437120. Its totient is φ = 189034560.

The previous prime is 500138137. The next prime is 500138141. The reversal of 500138140 is 41831005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500138141) 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, 166855 + ... + 169825.

It is an arithmetic number, because the mean of its divisors is an integer number (23092440).

Almost surely, 2^500138140 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 500138140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554218560).

500138140 is an abundant number, since it is smaller than the sum of its proper divisors (608298980).

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

500138140 is a wasteful number, since it uses less digits than its factorization.

500138140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442 (or 3440 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 500138140 is about 22363.7684659809. The cubic root of 500138140 is about 793.7736137807.

Adding to 500138140 its reverse (41831005), we get a palindrome (541969145).

The spelling of 500138140 in words is "five hundred million, one hundred thirty-eight thousand, one hundred forty".