384004827949 has 4 divisors (see below), whose sum is σ = 385216199964. Its totient is φ = 382793455936.

The previous prime is 384004827937. The next prime is 384004827967. The reversal of 384004827949 is 949728400483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 949728400483 = 17 ⋅55866376499.

It can be written as a sum of positive squares in 2 ways, for example, as 99935015625 + 284069812324 = 316125^2 + 532982^2 .

It is a cyclic number.

It is not a de Polignac number, because 384004827949 - 2⁷ = 384004827821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 384004827893 and 384004827902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384004827149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605685532 + ... + 605686165.

It is an arithmetic number, because the mean of its divisors is an integer number (96304049991).

Almost surely, 2^384004827949 is an apocalyptic number.

It is an amenable number.

384004827949 is a deficient number, since it is larger than the sum of its proper divisors (1211372015).

384004827949 is a wasteful number, since it uses less digits than its factorization.

384004827949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211372014.

The product of its (nonzero) digits is 13934592, while the sum is 58.

The spelling of 384004827949 in words is "three hundred eighty-four billion, four million, eight hundred twenty-seven thousand, nine hundred forty-nine".