444444330440 has 48 divisors (see below), whose sum is σ = 1099173283740. Its totient is φ = 161616118400.

The previous prime is 444444330433. The next prime is 444444330457. The reversal of 444444330440 is 44033444444.

It can be written as a sum of positive squares in 2 ways, for example, as 433482659236 + 10961671204 = 658394^2 + 104698^2 .

It is a junction number, because it is equal to n+sod(n) for n = 444444330394 and 444444330403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45908831 + ... + 45918510.

Almost surely, 2^444444330440 is an apocalyptic number.

444444330440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444444330440 is an abundant number, since it is smaller than the sum of its proper divisors (654728953300).

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

444444330440 is a wasteful number, since it uses less digits than its factorization.

444444330440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91827374 (or 91827359 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 38.

Adding to 444444330440 its reverse (44033444444), we get a palindrome (488477774884).

The spelling of 444444330440 in words is "four hundred forty-four billion, four hundred forty-four million, three hundred thirty thousand, four hundred forty".