1389795328 has 24 divisors (see below), whose sum is σ = 2778916140. Its totient is φ = 694896640.

The previous prime is 1389795313. The next prime is 1389795331. The reversal of 1389795328 is 8235979831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337258 + ... + 341353.

Almost surely, 2^1389795328 is an apocalyptic number.

It is an amenable number.

1389795328 is a deficient number, since it is larger than the sum of its proper divisors (1389120812).

1389795328 is an frugal number, since it uses more digits than its factorization.

1389795328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678633 (or 678613 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 55.

The square root of 1389795328 is about 37279.9587982605. The cubic root of 1389795328 is about 1115.9642507701.

The spelling of 1389795328 in words is "one billion, three hundred eighty-nine million, seven hundred ninety-five thousand, three hundred twenty-eight".