374306389 has 2 divisors, whose sum is σ = 374306390. Its totient is φ = 374306388.

The previous prime is 374306333. The next prime is 374306411. The reversal of 374306389 is 983603473.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260564164 + 113742225 = 16142^2 + 10665^2 .

It is a cyclic number.

It is not a de Polignac number, because 374306389 - 2¹¹ = 374304341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (374306189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187153194 + 187153195.

It is an arithmetic number, because the mean of its divisors is an integer number (187153195).

Almost surely, 2^374306389 is an apocalyptic number.

It is an amenable number.

374306389 is a deficient number, since it is larger than the sum of its proper divisors (1).

374306389 is an equidigital number, since it uses as much as digits as its factorization.

374306389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 374306389 is about 19346.9994831240. Note that the first 3 decimals coincide. The cubic root of 374306389 is about 720.6799062353.

The spelling of 374306389 in words is "three hundred seventy-four million, three hundred six thousand, three hundred eighty-nine".