380340091 has 2 divisors, whose sum is σ = 380340092. Its totient is φ = 380340090.

The previous prime is 380340073. The next prime is 380340139. The reversal of 380340091 is 190043083.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 380340091 - 2⁹ = 380339579 is a prime.

It is not a weakly prime, because it can be changed into another prime (380340011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190170045 + 190170046.

It is an arithmetic number, because the mean of its divisors is an integer number (190170046).

Almost surely, 2^380340091 is an apocalyptic number.

380340091 is a deficient number, since it is larger than the sum of its proper divisors (1).

380340091 is an equidigital number, since it uses as much as digits as its factorization.

380340091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 380340091 is about 19502.3098888311. The cubic root of 380340091 is about 724.5316616958.

The spelling of 380340091 in words is "three hundred eighty million, three hundred forty thousand, ninety-one".