500431940 has 12 divisors (see below), whose sum is σ = 1050907116. Its totient is φ = 200172768.

The previous prime is 500431931. The next prime is 500431951. The reversal of 500431940 is 49134005.

It can be written as a sum of positive squares in 2 ways, for example, as 276091456 + 224340484 = 16616^2 + 14978^2 .

It is an unprimeable number.

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, 12510779 + ... + 12510818.

It is an arithmetic number, because the mean of its divisors is an integer number (87575593).

Almost surely, 2^500431940 is an apocalyptic number.

It is an amenable number.

500431940 is an abundant number, since it is smaller than the sum of its proper divisors (550475176).

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

500431940 is a wasteful number, since it uses less digits than its factorization.

500431940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25021606 (or 25021604 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 500431940 is about 22370.3361619802. The cubic root of 500431940 is about 793.9290142047.

Adding to 500431940 its reverse (49134005), we get a palindrome (549565945).

The spelling of 500431940 in words is "five hundred million, four hundred thirty-one thousand, nine hundred forty".