401395 has 4 divisors (see below), whose sum is σ = 481680. Its totient is φ = 321112.

The previous prime is 401393. The next prime is 401407. The reversal of 401395 is 593104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401395 - 2¹ = 401393 is a prime.

It is a super-2 number, since 2×401395² = 322235892050, which contains 22 as substring.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (401393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40135 + ... + 40144.

It is an arithmetic number, because the mean of its divisors is an integer number (120420).

2⁴⁰¹³⁹⁵ is an apocalyptic number.

401395 is a deficient number, since it is larger than the sum of its proper divisors (80285).

401395 is an equidigital number, since it uses as much as digits as its factorization.

401395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80284.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 401395 is about 633.5574164983. The cubic root of 401395 is about 73.7661843252.

Adding to 401395 its reverse (593104), we get a palindrome (994499).

The spelling of 401395 in words is "four hundred one thousand, three hundred ninety-five".