380541409 has 2 divisors, whose sum is σ = 380541410. Its totient is φ = 380541408.

The previous prime is 380541407. The next prime is 380541433. The reversal of 380541409 is 904145083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375274384 + 5267025 = 19372^2 + 2295^2 .

It is a cyclic number.

It is not a de Polignac number, because 380541409 - 2¹ = 380541407 is a prime.

Together with 380541407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (380541401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190270704 + 190270705.

It is an arithmetic number, because the mean of its divisors is an integer number (190270705).

Almost surely, 2^380541409 is an apocalyptic number.

It is an amenable number.

380541409 is a deficient number, since it is larger than the sum of its proper divisors (1).

380541409 is an equidigital number, since it uses as much as digits as its factorization.

380541409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 380541409 is about 19507.4705946209. The cubic root of 380541409 is about 724.6594732175.

The spelling of 380541409 in words is "three hundred eighty million, five hundred forty-one thousand, four hundred nine".