1384349347440 has 120 divisors (see below), whose sum is σ = 4649516818128. Its totient is φ = 369127249920.

The previous prime is 1384349347387. The next prime is 1384349347441. The reversal of 1384349347440 is 447439434831.

It is a happy number.

1384349347440 is a `hidden beast` number, since 1 + 3 + 8 + 43 + 4 + 93 + 474 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384349347441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8713192 + ... + 8870648.

Almost surely, 2^{1384349347440} is an apocalyptic number.

1384349347440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1384349347440 is an abundant number, since it is smaller than the sum of its proper divisors (3265167470688).

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

1384349347440 is a wasteful number, since it uses less digits than its factorization.

1384349347440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169687 (or 169678 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 54.

The spelling of 1384349347440 in words is "one trillion, three hundred eighty-four billion, three hundred forty-nine million, three hundred forty-seven thousand, four hundred forty".