395031 has 16 divisors (see below), whose sum is σ = 648704. Its totient is φ = 208224.

The previous prime is 395027. The next prime is 395039. The reversal of 395031 is 130593.

395031 = T₇₉ + T₈₀ + ... + T₁₄₁.

It is not a de Polignac number, because 395031 - 2² = 395027 is a prime.

It is a super-2 number, since 2×395031² = 312098981922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 394989 and 395007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395039) 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, 451 + ... + 996.

It is an arithmetic number, because the mean of its divisors is an integer number (40544).

2³⁹⁵⁰³¹ is an apocalyptic number.

395031 is a deficient number, since it is larger than the sum of its proper divisors (253673).

395031 is a wasteful number, since it uses less digits than its factorization.

395031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470.

The product of its (nonzero) digits is 405, while the sum is 21.

The square root of 395031 is about 628.5149162908. The cubic root of 395031 is about 73.3742586074.

The spelling of 395031 in words is "three hundred ninety-five thousand, thirty-one".