1384440252528 has 40 divisors (see below), whose sum is σ = 3577072175248. Its totient is φ = 461402468352.

The previous prime is 1384440252523. The next prime is 1384440252539. The reversal of 1384440252528 is 8252520444831.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384440252523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2136775 + ... + 2708262.

Almost surely, 2^{1384440252528} is an apocalyptic number.

It is an amenable number.

1384440252528 is an abundant number, since it is smaller than the sum of its proper divisors (2192631922720).

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

1384440252528 is a wasteful number, since it uses less digits than its factorization.

1384440252528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4851001 (or 4850995 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 48.

The spelling of 1384440252528 in words is "one trillion, three hundred eighty-four billion, four hundred forty million, two hundred fifty-two thousand, five hundred twenty-eight".