1384126447 has 4 divisors (see below), whose sum is σ = 1509956136. Its totient is φ = 1258296760.

The previous prime is 1384126423. The next prime is 1384126483. The reversal of 1384126447 is 7446214831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1384126447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384124447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62914828 + ... + 62914849.

It is an arithmetic number, because the mean of its divisors is an integer number (377489034).

Almost surely, 2^1384126447 is an apocalyptic number.

1384126447 is a deficient number, since it is larger than the sum of its proper divisors (125829689).

1384126447 is a wasteful number, since it uses less digits than its factorization.

1384126447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125829688.

The product of its digits is 129024, while the sum is 40.

The square root of 1384126447 is about 37203.8498948698. The cubic root of 1384126447 is about 1114.4448688801. Note that the first 3 decimals are identical.

The spelling of 1384126447 in words is "one billion, three hundred eighty-four million, one hundred twenty-six thousand, four hundred forty-seven".