396274019 has 2 divisors, whose sum is σ = 396274020. Its totient is φ = 396274018.

The previous prime is 396273953. The next prime is 396274037. The reversal of 396274019 is 910472693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 396274019 - 2⁸ = 396273763 is a prime.

It is a super-2 number, since 2×396274019² = 314066196268824722, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (396274049) 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, 198137009 + 198137010.

It is an arithmetic number, because the mean of its divisors is an integer number (198137010).

Almost surely, 2^396274019 is an apocalyptic number.

396274019 is a deficient number, since it is larger than the sum of its proper divisors (1).

396274019 is an equidigital number, since it uses as much as digits as its factorization.

396274019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 396274019 is about 19906.6325379256. The cubic root of 396274019 is about 734.5113873478.

The spelling of 396274019 in words is "three hundred ninety-six million, two hundred seventy-four thousand, nineteen".