444121143143140 has 24 divisors (see below), whose sum is σ = 932655997442232. Its totient is φ = 177648153096960.

The previous prime is 444121143143099. The next prime is 444121143143239. The reversal of 444121143143140 is 41341341121444.

It can be written as a sum of positive squares in 4 ways, for example, as 15461551965924 + 428659591177216 = 3932118^2 + 20704096^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 444121143143140.

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, 6846939 + ... + 30579778.

It is an arithmetic number, because the mean of its divisors is an integer number (38860666560093).

Almost surely, 2^{444121143143140} is an apocalyptic number.

It is an amenable number.

444121143143140 is an abundant number, since it is smaller than the sum of its proper divisors (488534854299092).

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

444121143143140 is a wasteful number, since it uses less digits than its factorization.

444121143143140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38020047 (or 38020045 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 37.

Adding to 444121143143140 its reverse (41341341121444), we get a palindrome (485462484264584).

The spelling of 444121143143140 in words is "four hundred forty-four trillion, one hundred twenty-one billion, one hundred forty-three million, one hundred forty-three thousand, one hundred forty".