444243403000 has 64 divisors (see below), whose sum is σ = 1059143454720. Its totient is φ = 174344560000.

The previous prime is 444243402973. The next prime is 444243403081. The reversal of 444243403000 is 304342444.

It is a super-2 number, since 2×444243403000² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 444243403000.

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, 4137976 + ... + 4243975.

It is an arithmetic number, because the mean of its divisors is an integer number (16549116480).

Almost surely, 2^444243403000 is an apocalyptic number.

444243403000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444243403000 is an abundant number, since it is smaller than the sum of its proper divisors (614900051720).

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

444243403000 is a wasteful number, since it uses less digits than its factorization.

444243403000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8382025 (or 8382011 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 444243403000 its reverse (304342444), we get a palindrome (444547745444).

The spelling of 444243403000 in words is "four hundred forty-four billion, two hundred forty-three million, four hundred three thousand".