380544839 has 4 divisors (see below), whose sum is σ = 385757856. Its totient is φ = 375331824.

The previous prime is 380544811. The next prime is 380544841. The reversal of 380544839 is 938445083.

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

It is a cyclic number.

It is not a de Polignac number, because 380544839 - 2²⁰ = 379496263 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 380544839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380544859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2606399 + ... + 2606544.

It is an arithmetic number, because the mean of its divisors is an integer number (96439464).

Almost surely, 2^380544839 is an apocalyptic number.

380544839 is a deficient number, since it is larger than the sum of its proper divisors (5213017).

380544839 is an equidigital number, since it uses as much as digits as its factorization.

380544839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5213016.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 380544839 is about 19507.5585094599. The cubic root of 380544839 is about 724.6616504440.

The spelling of 380544839 in words is "three hundred eighty million, five hundred forty-four thousand, eight hundred thirty-nine".