444002200440 has 64 divisors (see below), whose sum is σ = 1340178480000. Its totient is φ = 117674197632.

The previous prime is 444002200399. The next prime is 444002200457. The reversal of 444002200440 is 44002200444.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 444002200440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11330190 + ... + 11369309.

It is an arithmetic number, because the mean of its divisors is an integer number (20940288750).

Almost surely, 2^444002200440 is an apocalyptic number.

444002200440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444002200440 is an abundant number, since it is smaller than the sum of its proper divisors (896176279560).

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

444002200440 is a wasteful number, since it uses less digits than its factorization.

444002200440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22699676 (or 22699672 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 444002200440 its reverse (44002200444), we get a palindrome (488004400884).

The spelling of 444002200440 in words is "four hundred forty-four billion, two million, two hundred thousand, four hundred forty".