501343140 has 48 divisors (see below), whose sum is σ = 1426783680. Its totient is φ = 131498880.

The previous prime is 501343109. The next prime is 501343151. The reversal of 501343140 is 41343105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64830 + ... + 72149.

It is an arithmetic number, because the mean of its divisors is an integer number (29724660).

Almost surely, 2^501343140 is an apocalyptic number.

It is an amenable number.

501343140 is an abundant number, since it is smaller than the sum of its proper divisors (925440540).

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

501343140 is a wasteful number, since it uses less digits than its factorization.

501343140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137052 (or 137050 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 501343140 is about 22390.6931558628. The cubic root of 501343140 is about 794.4105911682.

Adding to 501343140 its reverse (41343105), we get a palindrome (542686245).

The spelling of 501343140 in words is "five hundred one million, three hundred forty-three thousand, one hundred forty".