396560 has 20 divisors (see below), whose sum is σ = 922188. Its totient is φ = 158592.

The previous prime is 396547. The next prime is 396563. The reversal of 396560 is 65693.

It can be written as a sum of positive squares in 2 ways, for example, as 246016 + 150544 = 496^2 + 388^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 396560.

It is not an unprimeable number, because it can be changed into a prime (396563) by changing a digit.

396560 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2399 + ... + 2558.

2³⁹⁶⁵⁶⁰ is an apocalyptic number.

It is an amenable number.

396560 is an abundant number, since it is smaller than the sum of its proper divisors (525628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396560 is a wasteful number, since it uses less digits than its factorization.

396560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4970 (or 4964 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 396560 is about 629.7301009163. The cubic root of 396560 is about 73.4688037662.

The spelling of 396560 in words is "three hundred ninety-six thousand, five hundred sixty".