20200281 has 8 divisors (see below), whose sum is σ = 27313344. Its totient is φ = 13277040.

The previous prime is 20200259. The next prime is 20200289. The reversal of 20200281 is 18200202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20200281 - 2⁹ = 20199769 is a prime.

It is a super-2 number, since 2×20200281² = 816102704957922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20200281.

It is not an unprimeable number, because it can be changed into a prime (20200289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47206 + ... + 47631.

It is an arithmetic number, because the mean of its divisors is an integer number (3414168).

Almost surely, 2^20200281 is an apocalyptic number.

It is an amenable number.

20200281 is a deficient number, since it is larger than the sum of its proper divisors (7113063).

20200281 is an equidigital number, since it uses as much as digits as its factorization.

20200281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94911.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 20200281 is about 4494.4722715798. The cubic root of 20200281 is about 272.3448309983.

Adding to 20200281 its reverse (18200202), we get a palindrome (38400483).

The spelling of 20200281 in words is "twenty million, two hundred thousand, two hundred eighty-one".