444103220 has 24 divisors (see below), whose sum is σ = 1017400608. Its totient is φ = 161492000.

The previous prime is 444103211. The next prime is 444103237. The reversal of 444103220 is 22301444.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 444103192 and 444103201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009106 + ... + 1009545.

It is an arithmetic number, because the mean of its divisors is an integer number (42391692).

Almost surely, 2^444103220 is an apocalyptic number.

It is an amenable number.

444103220 is an abundant number, since it is smaller than the sum of its proper divisors (573297388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444103220 is a wasteful number, since it uses less digits than its factorization.

444103220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018671 (or 2018669 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 444103220 is about 21073.7566655782. The cubic root of 444103220 is about 762.9474761254.

Adding to 444103220 its reverse (22301444), we get a palindrome (466404664).

The spelling of 444103220 in words is "four hundred forty-four million, one hundred three thousand, two hundred twenty".