500640103400 has 24 divisors (see below), whose sum is σ = 1163988240870. Its totient is φ = 200256041280.

The previous prime is 500640103393. The next prime is 500640103423. The reversal of 500640103400 is 4301046005.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 411488892676 + 89151210724 = 641474^2 + 298582^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1251600059 + ... + 1251600458.

Almost surely, 2^500640103400 is an apocalyptic number.

500640103400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

500640103400 is an abundant number, since it is smaller than the sum of its proper divisors (663348137470).

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

500640103400 is a wasteful number, since it uses less digits than its factorization.

500640103400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503200533 (or 2503200524 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 500640103400 its reverse (4301046005), we get a palindrome (504941149405).

The spelling of 500640103400 in words is "five hundred billion, six hundred forty million, one hundred three thousand, four hundred".