1388171422 has 8 divisors (see below), whose sum is σ = 2271553272. Its totient is φ = 630987000.

The previous prime is 1388171377. The next prime is 1388171423. The reversal of 1388171422 is 2241718831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1388171423) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 31549329 + ... + 31549372.

It is an arithmetic number, because the mean of its divisors is an integer number (283944159).

Almost surely, 2^1388171422 is an apocalyptic number.

1388171422 is a deficient number, since it is larger than the sum of its proper divisors (883381850).

1388171422 is a wasteful number, since it uses less digits than its factorization.

1388171422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63098714.

The product of its digits is 21504, while the sum is 37.

The square root of 1388171422 is about 37258.1725531460. The cubic root of 1388171422 is about 1115.5294319891.

The spelling of 1388171422 in words is "one billion, three hundred eighty-eight million, one hundred seventy-one thousand, four hundred twenty-two".