220004447 has 8 divisors (see below), whose sum is σ = 237159216. Its totient is φ = 202882752.

The previous prime is 220004399. The next prime is 220004459. The reversal of 220004447 is 744400022.

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

It is a cyclic number.

It is not a de Polignac number, because 220004447 - 2¹⁴ = 219988063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220004467) 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 in 7 ways as a sum of consecutive naturals, for example, 6548 + ... + 21974.

It is an arithmetic number, because the mean of its divisors is an integer number (29644902).

Almost surely, 2^220004447 is an apocalyptic number.

220004447 is a deficient number, since it is larger than the sum of its proper divisors (17154769).

220004447 is a wasteful number, since it uses less digits than its factorization.

220004447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16537.

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 220004447 is about 14832.5468817732. The cubic root of 220004447 is about 603.6851411823.

Adding to 220004447 its reverse (744400022), we get a palindrome (964404469).

The spelling of 220004447 in words is "two hundred twenty million, four thousand, four hundred forty-seven".