384908381 has 24 divisors (see below), whose sum is σ = 475480320. Its totient is φ = 308927520.

The previous prime is 384908371. The next prime is 384908401. The reversal of 384908381 is 183809483.

It is not a de Polignac number, because 384908381 - 2⁶ = 384908317 is a prime.

It is a super-2 number, since 2×384908381² = 296308923528082322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384908371) 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 23 ways as a sum of consecutive naturals, for example, 30860 + ... + 41498.

It is an arithmetic number, because the mean of its divisors is an integer number (19811680).

Almost surely, 2^384908381 is an apocalyptic number.

It is an amenable number.

384908381 is a deficient number, since it is larger than the sum of its proper divisors (90571939).

384908381 is a wasteful number, since it uses less digits than its factorization.

384908381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10697 (or 10686 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 384908381 is about 19619.0820631344. The cubic root of 384908381 is about 727.4209239244.

The spelling of 384908381 in words is "three hundred eighty-four million, nine hundred eight thousand, three hundred eighty-one".