200420005 has 4 divisors (see below), whose sum is σ = 240504012. Its totient is φ = 160336000.

The previous prime is 200419969. The next prime is 200420023. The reversal of 200420005 is 500024002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 141943396 + 58476609 = 11914^2 + 7647^2 .

It is not a de Polignac number, because 200420005 - 2²¹ = 198322853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20041996 + ... + 20042005.

It is an arithmetic number, because the mean of its divisors is an integer number (60126003).

Almost surely, 2^200420005 is an apocalyptic number.

It is an amenable number.

200420005 is a deficient number, since it is larger than the sum of its proper divisors (40084007).

200420005 is an equidigital number, since it uses as much as digits as its factorization.

200420005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40084006.

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

The square root of 200420005 is about 14156.9772550499. The cubic root of 200420005 is about 585.2126287726.

Adding to 200420005 its reverse (500024002), we get a palindrome (700444007).

The spelling of 200420005 in words is "two hundred million, four hundred twenty thousand, five".