20801283 has 8 divisors (see below), whose sum is σ = 27783168. Its totient is φ = 13843464.

The previous prime is 20801243. The next prime is 20801317. The reversal of 20801283 is 38210802.

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

It is not a de Polignac number, because 20801283 - 2¹⁴ = 20784899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20801243) 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, 3891 + ... + 7532.

It is an arithmetic number, because the mean of its divisors is an integer number (3472896).

Almost surely, 2^20801283 is an apocalyptic number.

20801283 is a deficient number, since it is larger than the sum of its proper divisors (6981885).

20801283 is a wasteful number, since it uses less digits than its factorization.

20801283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12033.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 20801283 is about 4560.8423564074. The cubic root of 20801283 is about 275.0194278286.

The spelling of 20801283 in words is "twenty million, eight hundred one thousand, two hundred eighty-three".