20220833 has 4 divisors (see below), whose sum is σ = 20767380. Its totient is φ = 19674288.

The previous prime is 20220821. The next prime is 20220839. The reversal of 20220833 is 33802202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14684224 + 5536609 = 3832^2 + 2353^2 .

It is a cyclic number.

It is not a de Polignac number, because 20220833 - 2⁴ = 20220817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20220839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273218 + ... + 273291.

It is an arithmetic number, because the mean of its divisors is an integer number (5191845).

Almost surely, 2^20220833 is an apocalyptic number.

It is an amenable number.

20220833 is a deficient number, since it is larger than the sum of its proper divisors (546547).

20220833 is an equidigital number, since it uses as much as digits as its factorization.

20220833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546546.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20220833 is about 4496.7580544210. The cubic root of 20220833 is about 272.4371619549.

The spelling of 20220833 in words is "twenty million, two hundred twenty thousand, eight hundred thirty-three".