380274857 has 2 divisors, whose sum is σ = 380274858. Its totient is φ = 380274856.

The previous prime is 380274833. The next prime is 380274899. The reversal of 380274857 is 758472083.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 364466281 + 15808576 = 19091^2 + 3976^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380274857 is a prime.

It is a Chen prime.

It is a zygodrome in base 3.

It is not a weakly prime, because it can be changed into another prime (380274827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190137428 + 190137429.

It is an arithmetic number, because the mean of its divisors is an integer number (190137429).

Almost surely, 2^380274857 is an apocalyptic number.

It is an amenable number.

380274857 is a deficient number, since it is larger than the sum of its proper divisors (1).

380274857 is an equidigital number, since it uses as much as digits as its factorization.

380274857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 376320, while the sum is 44.

The square root of 380274857 is about 19500.6373485586. The cubic root of 380274857 is about 724.4902366642.

The spelling of 380274857 in words is "three hundred eighty million, two hundred seventy-four thousand, eight hundred fifty-seven".