1384406255544 has 128 divisors (see below), whose sum is σ = 3889882967040. Its totient is φ = 407389796352.

The previous prime is 1384406255483. The next prime is 1384406255593. The reversal of 1384406255544 is 4455526044831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75819664 + ... + 75837920.

It is an arithmetic number, because the mean of its divisors is an integer number (30389710680).

Almost surely, 2^{1384406255544} 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 1384406255544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1944941483520).

1384406255544 is an abundant number, since it is smaller than the sum of its proper divisors (2505476711496).

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

1384406255544 is a wasteful number, since it uses less digits than its factorization.

1384406255544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28869 (or 28865 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 51.

The spelling of 1384406255544 in words is "one trillion, three hundred eighty-four billion, four hundred six million, two hundred fifty-five thousand, five hundred forty-four".