395090 has 8 divisors (see below), whose sum is σ = 711180. Its totient is φ = 158032.

The previous prime is 395089. The next prime is 395093. The reversal of 395090 is 90593.

It can be written as a sum of positive squares in 2 ways, for example, as 375769 + 19321 = 613^2 + 139^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×395090² = 312192216200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (395093) 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, 19745 + ... + 19764.

2³⁹⁵⁰⁹⁰ is an apocalyptic number.

395090 is a deficient number, since it is larger than the sum of its proper divisors (316090).

395090 is a wasteful number, since it uses less digits than its factorization.

395090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39516.

The product of its (nonzero) digits is 1215, while the sum is 26.

The square root of 395090 is about 628.5618505764. The cubic root of 395090 is about 73.3779113720.

The spelling of 395090 in words is "three hundred ninety-five thousand, ninety".