380641 has 2 divisors, whose sum is σ = 380642. Its totient is φ = 380640.

The previous prime is 380629. The next prime is 380651. The reversal of 380641 is 146083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342225 + 38416 = 585^2 + 196^2 .

It is a cyclic number.

It is not a de Polignac number, because 380641 - 2⁹ = 380129 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (380621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190320 + 190321.

It is an arithmetic number, because the mean of its divisors is an integer number (190321).

2³⁸⁰⁶⁴¹ is an apocalyptic number.

It is an amenable number.

380641 is a deficient number, since it is larger than the sum of its proper divisors (1).

380641 is an equidigital number, since it uses as much as digits as its factorization.

380641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 380641 is about 616.9611008808. The cubic root of 380641 is about 72.4722684268.

The spelling of 380641 in words is "three hundred eighty thousand, six hundred forty-one".