396056345 has 4 divisors (see below), whose sum is σ = 475267620. Its totient is φ = 316845072.

The previous prime is 396056303. The next prime is 396056369. The reversal of 396056345 is 543650693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543650693 = 41 ⋅13259773.

It can be written as a sum of positive squares in 2 ways, for example, as 267551449 + 128504896 = 16357^2 + 11336^2 .

It is a cyclic number.

It is not a de Polignac number, because 396056345 - 2⁶ = 396056281 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 39605630 + ... + 39605639.

It is an arithmetic number, because the mean of its divisors is an integer number (118816905).

Almost surely, 2^396056345 is an apocalyptic number.

It is an amenable number.

396056345 is a deficient number, since it is larger than the sum of its proper divisors (79211275).

396056345 is an equidigital number, since it uses as much as digits as its factorization.

396056345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79211274.

The product of its (nonzero) digits is 291600, while the sum is 41.

The square root of 396056345 is about 19901.1644131694. The cubic root of 396056345 is about 734.3768732591.

The spelling of 396056345 in words is "three hundred ninety-six million, fifty-six thousand, three hundred forty-five".