220433405 has 16 divisors (see below), whose sum is σ = 273715200. Its totient is φ = 170244480.

The previous prime is 220433401. The next prime is 220433429. The reversal of 220433405 is 504334022.

It is not a de Polignac number, because 220433405 - 2² = 220433401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220433401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72761 + ... + 75729.

It is an arithmetic number, because the mean of its divisors is an integer number (17107200).

Almost surely, 2^220433405 is an apocalyptic number.

It is an amenable number.

220433405 is a deficient number, since it is larger than the sum of its proper divisors (53281795).

220433405 is a wasteful number, since it uses less digits than its factorization.

220433405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3484.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 220433405 is about 14846.9998652927. Note that the first 3 decimals coincide. The cubic root of 220433405 is about 604.0772354560.

Adding to 220433405 its reverse (504334022), we get a palindrome (724767427).

The spelling of 220433405 in words is "two hundred twenty million, four hundred thirty-three thousand, four hundred five".