389284849409 has 8 divisors (see below), whose sum is σ = 389806096680. Its totient is φ = 388763755776.

The previous prime is 389284849399. The next prime is 389284849417. The reversal of 389284849409 is 904948482983.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 101824810000 + 287460039409 = 319100^2 + 536153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 389284849409 - 2⁸ = 389284849153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389284849489) 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 7 ways as a sum of consecutive naturals, for example, 5575487 + ... + 5644875.

It is an arithmetic number, because the mean of its divisors is an integer number (48725762085).

Almost surely, 2^389284849409 is an apocalyptic number.

It is an amenable number.

389284849409 is a deficient number, since it is larger than the sum of its proper divisors (521247271).

389284849409 is an equidigital number, since it uses as much as digits as its factorization.

389284849409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76819.

The product of its (nonzero) digits is 143327232, while the sum is 68.

The spelling of 389284849409 in words is "three hundred eighty-nine billion, two hundred eighty-four million, eight hundred forty-nine thousand, four hundred nine".