384681349 has 12 divisors (see below), whose sum is σ = 419851776. Its totient is φ = 352274832.

The previous prime is 384681343. The next prime is 384681359. The reversal of 384681349 is 943186483.

It is not a de Polignac number, because 384681349 - 2⁷ = 384681221 is a prime.

It is a super-3 number, since 3×384681349³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 384681299 and 384681308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384681343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12502 + ... + 30424.

It is an arithmetic number, because the mean of its divisors is an integer number (34987648).

Almost surely, 2^384681349 is an apocalyptic number.

It is an amenable number.

384681349 is a deficient number, since it is larger than the sum of its proper divisors (35170427).

384681349 is a wasteful number, since it uses less digits than its factorization.

384681349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18076 (or 18063 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 384681349 is about 19613.2952101374. The cubic root of 384681349 is about 727.2778766297.

The spelling of 384681349 in words is "three hundred eighty-four million, six hundred eighty-one thousand, three hundred forty-nine".