396433945 has 8 divisors (see below), whose sum is σ = 479931336. Its totient is φ = 314340096.

The previous prime is 396433943. The next prime is 396433963. The reversal of 396433945 is 549334693.

It can be written as a sum of positive squares in 4 ways, for example, as 13957696 + 382476249 = 3736^2 + 19557^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 396433945 - 2¹ = 396433943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 396433895 and 396433904.

It is not an unprimeable number, because it can be changed into a prime (396433943) 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 in 7 ways as a sum of consecutive naturals, for example, 350262 + ... + 351391.

It is an arithmetic number, because the mean of its divisors is an integer number (59991417).

Almost surely, 2^396433945 is an apocalyptic number.

It is an amenable number.

396433945 is a deficient number, since it is larger than the sum of its proper divisors (83497391).

396433945 is a wasteful number, since it uses less digits than its factorization.

396433945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701771.

The product of its digits is 1049760, while the sum is 46.

The square root of 396433945 is about 19910.6490351269. The cubic root of 396433945 is about 734.6101840253.

The spelling of 396433945 in words is "three hundred ninety-six million, four hundred thirty-three thousand, nine hundred forty-five".