444230340 has 24 divisors (see below), whose sum is σ = 1243845120. Its totient is φ = 118461408.

The previous prime is 444230333. The next prime is 444230357. The reversal of 444230340 is 43032444.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 444230340.

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, 3701860 + ... + 3701979.

It is an arithmetic number, because the mean of its divisors is an integer number (51826880).

Almost surely, 2^444230340 is an apocalyptic number.

It is an amenable number.

444230340 is an abundant number, since it is smaller than the sum of its proper divisors (799614780).

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

444230340 is a wasteful number, since it uses less digits than its factorization.

444230340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7403851 (or 7403849 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 444230340 is about 21076.7725233253. The cubic root of 444230340 is about 763.0202644822.

Adding to 444230340 its reverse (43032444), we get a palindrome (487262784).

The spelling of 444230340 in words is "four hundred forty-four million, two hundred thirty thousand, three hundred forty".