1382001389 has 4 divisors (see below), whose sum is σ = 1396248924. Its totient is φ = 1367753856.

The previous prime is 1382001343. The next prime is 1382001403. The reversal of 1382001389 is 9831002831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 289170025 + 1092831364 = 17005^2 + 33058^2 .

It is a cyclic number.

It is not a de Polignac number, because 1382001389 - 2⁸ = 1382001133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1382001329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7123622 + ... + 7123815.

It is an arithmetic number, because the mean of its divisors is an integer number (349062231).

Almost surely, 2^1382001389 is an apocalyptic number.

It is an amenable number.

1382001389 is a deficient number, since it is larger than the sum of its proper divisors (14247535).

1382001389 is an equidigital number, since it uses as much as digits as its factorization.

1382001389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14247534.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1382001389 is about 37175.2792726564. The cubic root of 1382001389 is about 1113.8742386882.

The spelling of 1382001389 in words is "one billion, three hundred eighty-two million, one thousand, three hundred eighty-nine".