500129938 has 32 divisors (see below), whose sum is σ = 940584960. Its totient is φ = 193756560.

The previous prime is 500129933. The next prime is 500129939. The reversal of 500129938 is 839921005.

It is a junction number, because it is equal to n+sod(n) for n = 500129897 and 500129906.

It is not an unprimeable number, because it can be changed into a prime (500129933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18495 + ... + 36637.

It is an arithmetic number, because the mean of its divisors is an integer number (29393280).

Almost surely, 2^500129938 is an apocalyptic number.

500129938 is a deficient number, since it is larger than the sum of its proper divisors (440455022).

500129938 is a wasteful number, since it uses less digits than its factorization.

500129938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18342.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 500129938 is about 22363.5850882635. The cubic root of 500129938 is about 793.7692746017.

Adding to 500129938 its product of nonzero digits (19440), we get a triangular number (500149378 = T₃₁₆₂₇).

The spelling of 500129938 in words is "five hundred million, one hundred twenty-nine thousand, nine hundred thirty-eight".