200340020 has 24 divisors (see below), whose sum is σ = 421164744. Its totient is φ = 80050176.

The previous prime is 200340013. The next prime is 200340029. The reversal of 200340020 is 20043002.

It can be written as a sum of positive squares in 4 ways, for example, as 31651876 + 168688144 = 5626^2 + 12988^2 .

It is a super-2 number, since 2×200340020² = 80272247227200800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200339983 and 200340010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200340029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15812 + ... + 25508.

It is an arithmetic number, because the mean of its divisors is an integer number (17548531).

Almost surely, 2^200340020 is an apocalyptic number.

200340020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200340020 is an abundant number, since it is smaller than the sum of its proper divisors (220824724).

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

200340020 is a wasteful number, since it uses less digits than its factorization.

200340020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10739 (or 10737 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 200340020 is about 14154.1520410090. The cubic root of 200340020 is about 585.1347681812.

Adding to 200340020 its reverse (20043002), we get a palindrome (220383022).

The spelling of 200340020 in words is "two hundred million, three hundred forty thousand, twenty".