220000444 has 6 divisors (see below), whose sum is σ = 385000784. Its totient is φ = 110000220.

The previous prime is 220000423. The next prime is 220000457. The reversal of 220000444 is 444000022.

220000444 is a modest number, since divided by 444 gives 220 as remainder.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27500052 + ... + 27500059.

Almost surely, 2^220000444 is an apocalyptic number.

It is an amenable number.

220000444 is a deficient number, since it is larger than the sum of its proper divisors (165000340).

220000444 is a wasteful number, since it uses less digits than its factorization.

220000444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55000115 (or 55000113 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 220000444 is about 14832.4119414207. The cubic root of 220000444 is about 603.6814797922.

Adding to 220000444 its reverse (444000022), we get a palindrome (664000466).

The spelling of 220000444 in words is "two hundred twenty million, four hundred forty-four", and thus it is an aban number.