220805733 has 4 divisors (see below), whose sum is σ = 294407648. Its totient is φ = 147203820.

The previous prime is 220805719. The next prime is 220805743. The reversal of 220805733 is 337508022.

220805733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 220805733 - 2¹³ = 220797541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220805733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220805713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36800953 + ... + 36800958.

It is an arithmetic number, because the mean of its divisors is an integer number (73601912).

Almost surely, 2^220805733 is an apocalyptic number.

It is an amenable number.

220805733 is a deficient number, since it is larger than the sum of its proper divisors (73601915).

220805733 is an equidigital number, since it uses as much as digits as its factorization.

220805733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73601914.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 220805733 is about 14859.5334045185. The cubic root of 220805733 is about 604.4171542252.

The spelling of 220805733 in words is "two hundred twenty million, eight hundred five thousand, seven hundred thirty-three".