396382394 has 4 divisors (see below), whose sum is σ = 594573594. Its totient is φ = 198191196.

The previous prime is 396382381. The next prime is 396382397. The reversal of 396382394 is 493283693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 493283693 = 7 ⋅70469099.

It can be written as a sum of positive squares in only one way, i.e., 233692369 + 162690025 = 15287^2 + 12755^2 .

It is not an unprimeable number, because it can be changed into a prime (396382397) 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, 99095597 + ... + 99095600.

Almost surely, 2^396382394 is an apocalyptic number.

396382394 is a deficient number, since it is larger than the sum of its proper divisors (198191200).

396382394 is a wasteful number, since it uses less digits than its factorization.

396382394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198191199.

The product of its digits is 839808, while the sum is 47.

The square root of 396382394 is about 19909.3544345365. The cubic root of 396382394 is about 734.5783405268.

The spelling of 396382394 in words is "three hundred ninety-six million, three hundred eighty-two thousand, three hundred ninety-four".