200421441 has 24 divisors (see below), whose sum is σ = 316540224. Its totient is φ = 121188960.

The previous prime is 200421439. The next prime is 200421491. The reversal of 200421441 is 144124002.

200421441 is a `hidden beast` number, since 200 + 4 + 21 + 441 = 666.

It is not a de Polignac number, because 200421441 - 2¹ = 200421439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200421421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46135 + ... + 50291.

It is an arithmetic number, because the mean of its divisors is an integer number (13189176).

Almost surely, 2^200421441 is an apocalyptic number.

It is an amenable number.

200421441 is a deficient number, since it is larger than the sum of its proper divisors (116118783).

200421441 is a wasteful number, since it uses less digits than its factorization.

200421441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4661 (or 4658 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 200421441 is about 14157.0279720003. The cubic root of 200421441 is about 585.2140264430.

Adding to 200421441 its reverse (144124002), we get a palindrome (344545443).

The spelling of 200421441 in words is "two hundred million, four hundred twenty-one thousand, four hundred forty-one".