500040004 has 6 divisors (see below), whose sum is σ = 875070014. Its totient is φ = 250020000.

The previous prime is 500039993. The next prime is 500040019. The reversal of 500040004 is 400040005.

It can be written as a sum of positive squares in only one way, i.e., 400000000 + 100040004 = 20000^2 + 10002^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62504997 + ... + 62505004.

Almost surely, 2^500040004 is an apocalyptic number.

It is an amenable number.

500040004 is a deficient number, since it is larger than the sum of its proper divisors (375030010).

500040004 is a wasteful number, since it uses less digits than its factorization.

500040004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125010005 (or 125010003 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 500040004 is about 22361.5742737402. The cubic root of 500040004 is about 793.7216928835.

Adding to 500040004 its reverse (400040005), we get a palindrome (900080009).

Subtracting from 500040004 its reverse (400040005), we obtain a palindrome (99999999).

The spelling of 500040004 in words is "five hundred million, forty thousand, four".