20080281 has 32 divisors (see below), whose sum is σ = 31546368. Its totient is φ = 11243520.

The previous prime is 20080253. The next prime is 20080289. The reversal of 20080281 is 18208002.

It is not a de Polignac number, because 20080281 - 2⁷ = 20080153 is a prime.

It is a super-2 number, since 2×20080281² = 806435370077922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20080289) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20065 + ... + 21041.

It is an arithmetic number, because the mean of its divisors is an integer number (985824).

Almost surely, 2^20080281 is an apocalyptic number.

It is an amenable number.

20080281 is a deficient number, since it is larger than the sum of its proper divisors (11466087).

20080281 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (20080280) it forms an eRAP, since the sums of their prime factors are consecutive (1040 and 1041).

20080281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 20080281 is about 4481.1026544814. The cubic root of 20080281 is about 271.8044703823.

Adding to 20080281 its reverse (18208002), we get a palindrome (38288283).

The spelling of 20080281 in words is "twenty million, eighty thousand, two hundred eighty-one".