1389015369 has 24 divisors (see below), whose sum is σ = 2346307392. Its totient is φ = 775262880.

The previous prime is 1389015317. The next prime is 1389015451. The reversal of 1389015369 is 9635109831.

It is not a de Polignac number, because 1389015369 - 2⁹ = 1389014857 is a prime.

It is a super-2 number, since 2×1389015369² = 3858727390636412322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1389015169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 253662 + ... + 259079.

It is an arithmetic number, because the mean of its divisors is an integer number (97762808).

Almost surely, 2^1389015369 is an apocalyptic number.

It is an amenable number.

1389015369 is a deficient number, since it is larger than the sum of its proper divisors (957292023).

1389015369 is a wasteful number, since it uses less digits than its factorization.

1389015369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512797 (or 512794 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 1389015369 is about 37269.4964951232. The cubic root of 1389015369 is about 1115.7554504238.

The spelling of 1389015369 in words is "one billion, three hundred eighty-nine million, fifteen thousand, three hundred sixty-nine".