1388124349 has 8 divisors (see below), whose sum is σ = 1394032640. Its totient is φ = 1382228496.

The previous prime is 1388124347. The next prime is 1388124373. The reversal of 1388124349 is 9434218831.

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

It is a cyclic number.

It is not a de Polignac number, because 1388124349 - 2¹ = 1388124347 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 (1388124347) 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 7 ways as a sum of consecutive naturals, for example, 268612 + ... + 273730.

It is an arithmetic number, because the mean of its divisors is an integer number (174254080).

Almost surely, 2^1388124349 is an apocalyptic number.

It is an amenable number.

1388124349 is a deficient number, since it is larger than the sum of its proper divisors (5908291).

1388124349 is an equidigital number, since it uses as much as digits as its factorization.

1388124349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6219.

The product of its digits is 165888, while the sum is 43.

The square root of 1388124349 is about 37257.5408340379. The cubic root of 1388124349 is about 1115.5168226169.

The spelling of 1388124349 in words is "one billion, three hundred eighty-eight million, one hundred twenty-four thousand, three hundred forty-nine".