1379438893 has 8 divisors (see below), whose sum is σ = 1659475520. Its totient is φ = 1120145760.

The previous prime is 1379438887. The next prime is 1379438959. The reversal of 1379438893 is 3988349731.

It is a happy number.

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

It is not a de Polignac number, because 1379438893 - 2⁹ = 1379438381 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 (1379438993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5185728 + ... + 5185993.

It is an arithmetic number, because the mean of its divisors is an integer number (207434440).

Almost surely, 2^1379438893 is an apocalyptic number.

It is an amenable number.

1379438893 is a deficient number, since it is larger than the sum of its proper divisors (280036627).

1379438893 is a wasteful number, since it uses less digits than its factorization.

1379438893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10371747.

The product of its digits is 3919104, while the sum is 55.

The square root of 1379438893 is about 37140.7982278249. The cubic root of 1379438893 is about 1113.1853671568.

The spelling of 1379438893 in words is "one billion, three hundred seventy-nine million, four hundred thirty-eight thousand, eight hundred ninety-three".