1389116038 has 4 divisors (see below), whose sum is σ = 2083674060. Its totient is φ = 694558018.

The previous prime is 1389115997. The next prime is 1389116041. The reversal of 1389116038 is 8306119831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8306119831 = 491 ⋅16916741.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347279008 + ... + 347279011.

It is an arithmetic number, because the mean of its divisors is an integer number (520918515).

Almost surely, 2^1389116038 is an apocalyptic number.

1389116038 is a deficient number, since it is larger than the sum of its proper divisors (694558022).

1389116038 is an equidigital number, since it uses as much as digits as its factorization.

1389116038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694558021.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 1389116038 is about 37270.8470255238. The cubic root of 1389116038 is about 1115.7824045945.

It can be divided in two parts, 13891 and 16038, that added together give a square (29929 = 173²).

The spelling of 1389116038 in words is "one billion, three hundred eighty-nine million, one hundred sixteen thousand, thirty-eight".