396045 has 24 divisors (see below), whose sum is σ = 740376. Its totient is φ = 194688.

The previous prime is 396043. The next prime is 396061. The reversal of 396045 is 540693.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 84681 + 311364 = 291^2 + 558^2 .

It is not a de Polignac number, because 396045 - 2¹ = 396043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 247 + ... + 923.

It is an arithmetic number, because the mean of its divisors is an integer number (30849).

2³⁹⁶⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

396045 is a deficient number, since it is larger than the sum of its proper divisors (344331).

396045 is a wasteful number, since it uses less digits than its factorization.

396045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701 (or 698 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 396045 is about 629.3210627335. The cubic root of 396045 is about 73.4369861138.

It can be divided in two parts, 3960 and 45, that added together give a triangular number (4005 = T₈₉).

The spelling of 396045 in words is "three hundred ninety-six thousand, forty-five".