1389048265 has 32 divisors (see below), whose sum is σ = 1873503360. Its totient is φ = 979776000.

The previous prime is 1389048259. The next prime is 1389048299. The reversal of 1389048265 is 5628409831.

It is not a de Polignac number, because 1389048265 - 2⁵ = 1389048233 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 770365 + ... + 772165.

It is an arithmetic number, because the mean of its divisors is an integer number (58546980).

Almost surely, 2^1389048265 is an apocalyptic number.

It is an amenable number.

1389048265 is a deficient number, since it is larger than the sum of its proper divisors (484455095).

1389048265 is a wasteful number, since it uses less digits than its factorization.

1389048265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 1389048265 is about 37269.9378185690. The cubic root of 1389048265 is about 1115.7642584861.

The spelling of 1389048265 in words is "one billion, three hundred eighty-nine million, forty-eight thousand, two hundred sixty-five".