1438504014744 has 224 divisors, whose sum is σ = 4066465228320. Its totient is φ = 476839623168.

The previous prime is 1438504014721. The next prime is 1438504014749. The reversal of 1438504014744 is 4474104058341.

It is a self number, because there is not a number n which added to its sum of digits gives 1438504014744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438504014749) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 994127829 + ... + 994129275.

Almost surely, 2^{1438504014744} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1438504014744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2033232614160).

1438504014744 is an abundant number, since it is smaller than the sum of its proper divisors (2627961213576).

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

1438504014744 is a wasteful number, since it uses less digits than its factorization.

1438504014744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301 (or 2282 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 45.

The spelling of 1438504014744 in words is "one trillion, four hundred thirty-eight billion, five hundred four million, fourteen thousand, seven hundred forty-four".