401318 has 16 divisors (see below), whose sum is σ = 648000. Its totient is φ = 185832.

The previous prime is 401311. The next prime is 401321. The reversal of 401318 is 813104.

It is a happy number.

It is a super-2 number, since 2×401318² = 322112274248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401296 and 401305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2153 + ... + 2331.

It is an arithmetic number, because the mean of its divisors is an integer number (40500).

2⁴⁰¹³¹⁸ is an apocalyptic number.

401318 is a deficient number, since it is larger than the sum of its proper divisors (246682).

401318 is a wasteful number, since it uses less digits than its factorization.

401318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 401318 is about 633.4966456107. The cubic root of 401318 is about 73.7614671435.

The spelling of 401318 in words is "four hundred one thousand, three hundred eighteen".