401885 has 8 divisors (see below), whose sum is σ = 526176. Its totient is φ = 292240.

The previous prime is 401867. The next prime is 401887. The reversal of 401885 is 588104.

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

It is not a de Polignac number, because 401885 - 2⁸ = 401629 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3599 + ... + 3708.

It is an arithmetic number, because the mean of its divisors is an integer number (65772).

2⁴⁰¹⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

401885 is a deficient number, since it is larger than the sum of its proper divisors (124291).

401885 is a wasteful number, since it uses less digits than its factorization.

401885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7323.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 401885 is about 633.9440038363. The cubic root of 401885 is about 73.7961886287.

Adding to 401885 its reverse (588104), we get a palindrome (989989).

The spelling of 401885 in words is "four hundred one thousand, eight hundred eighty-five".