395540 has 12 divisors (see below), whose sum is σ = 830676. Its totient is φ = 158208.

The previous prime is 395537. The next prime is 395543. The reversal of 395540 is 45593.

It is an interprime number because it is at equal distance from previous prime (395537) and next prime (395543).

It can be written as a sum of positive squares in 2 ways, for example, as 163216 + 232324 = 404^2 + 482^2 .

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 395540.

It is not an unprimeable number, because it can be changed into a prime (395543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9869 + ... + 9908.

It is an arithmetic number, because the mean of its divisors is an integer number (69223).

2³⁹⁵⁵⁴⁰ is an apocalyptic number.

It is an amenable number.

395540 is an abundant number, since it is smaller than the sum of its proper divisors (435136).

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

395540 is a wasteful number, since it uses less digits than its factorization.

395540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19786 (or 19784 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 395540 is about 628.9197087069. The cubic root of 395540 is about 73.4057594839.

The spelling of 395540 in words is "three hundred ninety-five thousand, five hundred forty".