220434069 has 4 divisors (see below), whose sum is σ = 293912096. Its totient is φ = 146956044.

The previous prime is 220434041. The next prime is 220434083. The reversal of 220434069 is 960434022.

220434069 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 220434069 - 2⁵ = 220434037 is a prime.

It is a super-4 number, since 4×220434069⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220434169) 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, 36739009 + ... + 36739014.

It is an arithmetic number, because the mean of its divisors is an integer number (73478024).

Almost surely, 2^220434069 is an apocalyptic number.

It is an amenable number.

220434069 is a deficient number, since it is larger than the sum of its proper divisors (73478027).

220434069 is an equidigital number, since it uses as much as digits as its factorization.

220434069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73478026.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 220434069 is about 14847.0222266958. The cubic root of 220434069 is about 604.0778419988.

The spelling of 220434069 in words is "two hundred twenty million, four hundred thirty-four thousand, sixty-nine".