1440020444244 has 48 divisors (see below), whose sum is σ = 3374019875520. Its totient is φ = 478011456000.

The previous prime is 1440020444189. The next prime is 1440020444267. The reversal of 1440020444244 is 4424440200441.

It is a super-3 number, since 3×1440020444244³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 18723372 + ... + 18800124.

It is an arithmetic number, because the mean of its divisors is an integer number (70292080740).

Almost surely, 2^{1440020444244} is an apocalyptic number.

It is an amenable number.

1440020444244 is an abundant number, since it is smaller than the sum of its proper divisors (1933999431276).

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

1440020444244 is a wasteful number, since it uses less digits than its factorization.

1440020444244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83240 (or 83238 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 33.

Adding to 1440020444244 its reverse (4424440200441), we get a palindrome (5864460644685).

The spelling of 1440020444244 in words is "one trillion, four hundred forty billion, twenty million, four hundred forty-four thousand, two hundred forty-four".