2000381 has 2 divisors, whose sum is σ = 2000382. Its totient is φ = 2000380.

The previous prime is 2000371. The next prime is 2000387. The reversal of 2000381 is 1830002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1069156 + 931225 = 1034^2 + 965^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000381 - 2¹⁴ = 1983997 is a prime.

It is a super-2 number, since 2×2000381² = 8003048290322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000190 + 1000191.

It is an arithmetic number, because the mean of its divisors is an integer number (1000191).

2^2000381 is an apocalyptic number.

It is an amenable number.

2000381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000381 is an equidigital number, since it uses as much as digits as its factorization.

2000381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2000381 is about 1414.3482598003. The cubic root of 2000381 is about 126.0001049802. Note that the first 3 decimals are identical.

Adding to 2000381 its reverse (1830002), we get a palindrome (3830383).

The spelling of 2000381 in words is "two million, three hundred eighty-one", and thus it is an aban number.