384092381 has 2 divisors, whose sum is σ = 384092382. Its totient is φ = 384092380.

The previous prime is 384092333. The next prime is 384092447. The reversal of 384092381 is 183290483.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 340993156 + 43099225 = 18466^2 + 6565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-384092381 is a prime.

It is a super-2 number, since 2×384092381² = 295053914284498322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384092281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192046190 + 192046191.

It is an arithmetic number, because the mean of its divisors is an integer number (192046191).

Almost surely, 2^384092381 is an apocalyptic number.

It is an amenable number.

384092381 is a deficient number, since it is larger than the sum of its proper divisors (1).

384092381 is an equidigital number, since it uses as much as digits as its factorization.

384092381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 384092381 is about 19598.2749495970. The cubic root of 384092381 is about 726.9065197571.

The spelling of 384092381 in words is "three hundred eighty-four million, ninety-two thousand, three hundred eighty-one".