500020000 has 120 divisors (see below), whose sum is σ = 1284788736. Its totient is φ = 191136000.

The previous prime is 500019991. The next prime is 500020009. The reversal of 500020000 is 20005.

It is an interprime number because it is at equal distance from previous prime (500019991) and next prime (500020009).

It is a sliding number, since 500020000 = 20000 + 500000000 and 1/20000 + 1/500000000 = 0.0000500020000.

It is not an unprimeable number, because it can be changed into a prime (500020009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 459457 + ... + 460543.

Almost surely, 2^500020000 is an apocalyptic number.

500020000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 500020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (642394368).

500020000 is an abundant number, since it is smaller than the sum of its proper divisors (784768736).

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

500020000 is a wasteful number, since it uses less digits than its factorization.

500020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 7.

The square root of 500020000 is about 22361.1269841214. The cubic root of 500020000 is about 793.7111085167.

Adding to 500020000 its reverse (20005), we get a palindrome (500040005).

It can be divided in two parts, 5000 and 20000, that multiplied together give a 8-th power (100000000 = 10⁸).

The spelling of 500020000 in words is "five hundred million, twenty thousand".