220404433 has 2 divisors, whose sum is σ = 220404434. Its totient is φ = 220404432.

The previous prime is 220404413. The next prime is 220404493. The reversal of 220404433 is 334404022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195524289 + 24880144 = 13983^2 + 4988^2 .

It is a cyclic number.

It is not a de Polignac number, because 220404433 - 2²¹ = 218307281 is a prime.

It is a super-2 number, since 2×220404433² = 97156228172102978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220404413) 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 as a sum of consecutive naturals, namely, 110202216 + 110202217.

It is an arithmetic number, because the mean of its divisors is an integer number (110202217).

Almost surely, 2^220404433 is an apocalyptic number.

It is an amenable number.

220404433 is a deficient number, since it is larger than the sum of its proper divisors (1).

220404433 is an equidigital number, since it uses as much as digits as its factorization.

220404433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 220404433 is about 14846.0241478990. The cubic root of 220404433 is about 604.0507692731.

Adding to 220404433 its reverse (334404022), we get a palindrome (554808455).

The spelling of 220404433 in words is "two hundred twenty million, four hundred four thousand, four hundred thirty-three".