395890 has 32 divisors (see below), whose sum is σ = 803520. Its totient is φ = 139200.

The previous prime is 395887. The next prime is 395891. The reversal of 395890 is 98593.

It is not an unprimeable number, because it can be changed into a prime (395891) 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, 6460 + ... + 6520.

It is an arithmetic number, because the mean of its divisors is an integer number (25110).

2³⁹⁵⁸⁹⁰ is an apocalyptic number.

395890 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

395890 is a wasteful number, since it uses less digits than its factorization.

395890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 395890 is about 629.1979020944. The cubic root of 395890 is about 73.4274045274.

It can be divided in two parts, 39 and 5890, that added together give a square (5929 = 77²).

The spelling of 395890 in words is "three hundred ninety-five thousand, eight hundred ninety".