502145772 has 12 divisors (see below), whose sum is σ = 1171673496. Its totient is φ = 167381920.

The previous prime is 502145753. The next prime is 502145773. The reversal of 502145772 is 277541205.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (502145773) 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 3 ways as a sum of consecutive naturals, for example, 20922729 + ... + 20922752.

It is an arithmetic number, because the mean of its divisors is an integer number (97639458).

Almost surely, 2^502145772 is an apocalyptic number.

It is an amenable number.

502145772 is an abundant number, since it is smaller than the sum of its proper divisors (669527724).

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

502145772 is a wasteful number, since it uses less digits than its factorization.

502145772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41845488 (or 41845486 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 502145772 is about 22408.6093276669. The cubic root of 502145772 is about 794.8343058821.

Adding to 502145772 its reverse (277541205), we get a palindrome (779686977).

The spelling of 502145772 in words is "five hundred two million, one hundred forty-five thousand, seven hundred seventy-two".