444454220 has 48 divisors (see below), whose sum is σ = 1070834688. Its totient is φ = 151792320.

The previous prime is 444454217. The next prime is 444454229. The reversal of 444454220 is 22454444.

It is not an unprimeable number, because it can be changed into a prime (444454229) 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 15 ways as a sum of consecutive naturals, for example, 30785 + ... + 42855.

It is an arithmetic number, because the mean of its divisors is an integer number (22309056).

Almost surely, 2^444454220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444454220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535417344).

444454220 is an abundant number, since it is smaller than the sum of its proper divisors (626380468).

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

444454220 is a wasteful number, since it uses less digits than its factorization.

444454220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12350 (or 12348 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 29.

The square root of 444454220 is about 21082.0829141715. The cubic root of 444454220 is about 763.1484234367.

The spelling of 444454220 in words is "four hundred forty-four million, four hundred fifty-four thousand, two hundred twenty".