220064438 has 8 divisors (see below), whose sum is σ = 360105480. Its totient is φ = 100029280.

The previous prime is 220064431. The next prime is 220064447. The reversal of 220064438 is 834460022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 220064438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220064431) 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 3 ways as a sum of consecutive naturals, for example, 5001443 + ... + 5001486.

It is an arithmetic number, because the mean of its divisors is an integer number (45013185).

Almost surely, 2^220064438 is an apocalyptic number.

220064438 is a deficient number, since it is larger than the sum of its proper divisors (140041042).

220064438 is a wasteful number, since it uses less digits than its factorization.

220064438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10002942.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 220064438 is about 14834.5690196918. The cubic root of 220064438 is about 603.7400073217.

The spelling of 220064438 in words is "two hundred twenty million, sixty-four thousand, four hundred thirty-eight".