401018 has 8 divisors (see below), whose sum is σ = 615648. Its totient is φ = 195804.

The previous prime is 401017. The next prime is 401029. The reversal of 401018 is 810104.

It is a happy number.

401018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×401018³ = 193469653931333496, which contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 400993 and 401011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401017) 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 3 ways as a sum of consecutive naturals, for example, 2246 + ... + 2417.

It is an arithmetic number, because the mean of its divisors is an integer number (76956).

2⁴⁰¹⁰¹⁸ is an apocalyptic number.

401018 is a deficient number, since it is larger than the sum of its proper divisors (214630).

401018 is a wasteful number, since it uses less digits than its factorization.

401018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4708.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 401018 is about 633.2598202950. The cubic root of 401018 is about 73.7430827564.

The spelling of 401018 in words is "four hundred one thousand, eighteen".