396445 has 16 divisors (see below), whose sum is σ = 557568. Its totient is φ = 264960.

The previous prime is 396443. The next prime is 396449. The reversal of 396445 is 544693.

396445 is nontrivially palindromic in base 6.

It is not a de Polignac number, because 396445 - 2¹ = 396443 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1525 + ... + 1765.

It is an arithmetic number, because the mean of its divisors is an integer number (34848).

2³⁹⁶⁴⁴⁵ is an apocalyptic number.

396445 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

396445 is a deficient number, since it is larger than the sum of its proper divisors (161123).

396445 is a wasteful number, since it uses less digits than its factorization.

396445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

The product of its digits is 12960, while the sum is 31.

The square root of 396445 is about 629.6387853365. The cubic root of 396445 is about 73.4617012435.

It can be divided in two parts, 396 and 445, that added together give a square (841 = 29²).

The spelling of 396445 in words is "three hundred ninety-six thousand, four hundred forty-five".