502681140 has 120 divisors (see below), whose sum is σ = 1698302760. Its totient is φ = 123731712.

The previous prime is 502681111. The next prime is 502681147. The reversal of 502681140 is 41186205.

It can be written as a sum of positive squares in 4 ways, for example, as 37675044 + 465006096 = 6138^2 + 21564^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502681147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9126 + ... + 32994.

It is an arithmetic number, because the mean of its divisors is an integer number (14152523).

Almost surely, 2^502681140 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 502681140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (849151380).

502681140 is an abundant number, since it is smaller than the sum of its proper divisors (1195621620).

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

502681140 is a wasteful number, since it uses less digits than its factorization.

502681140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23903 (or 23892 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 502681140 is about 22420.5517327295. The cubic root of 502681140 is about 795.1166792078.

The spelling of 502681140 in words is "five hundred two million, six hundred eighty-one thousand, one hundred forty".