200421795 has 16 divisors (see below), whose sum is σ = 366485760. Its totient is φ = 91621344.

The previous prime is 200421791. The next prime is 200421797. The reversal of 200421795 is 597124002.

It is not a de Polignac number, because 200421795 - 2² = 200421791 is a prime.

It is a super-2 number, since 2×200421795² = 80337791822044050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (200421791) 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, 954285 + ... + 954494.

It is an arithmetic number, because the mean of its divisors is an integer number (22905360).

Almost surely, 2^200421795 is an apocalyptic number.

200421795 is a deficient number, since it is larger than the sum of its proper divisors (166063965).

200421795 is a wasteful number, since it uses less digits than its factorization.

200421795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908794.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 200421795 is about 14157.0404746190. The cubic root of 200421795 is about 585.2143709930.

Adding to 200421795 its reverse (597124002), we get a palindrome (797545797).

The spelling of 200421795 in words is "two hundred million, four hundred twenty-one thousand, seven hundred ninety-five".