1389888395 has 16 divisors (see below), whose sum is σ = 1917554688. Its totient is φ = 947355360.

The previous prime is 1389888389. The next prime is 1389888407. The reversal of 1389888395 is 5938889831.

It is not a de Polignac number, because 1389888395 - 2⁸ = 1389888139 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 113051 + ... + 124740.

It is an arithmetic number, because the mean of its divisors is an integer number (119847168).

Almost surely, 2^1389888395 is an apocalyptic number.

1389888395 is a deficient number, since it is larger than the sum of its proper divisors (527666293).

1389888395 is a wasteful number, since it uses less digits than its factorization.

1389888395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237970.

The product of its digits is 14929920, while the sum is 62.

The square root of 1389888395 is about 37281.2069949459. The cubic root of 1389888395 is about 1115.9891602237.

The spelling of 1389888395 in words is "one billion, three hundred eighty-nine million, eight hundred eighty-eight thousand, three hundred ninety-five".