401886 has 24 divisors (see below), whose sum is σ = 884520. Its totient is φ = 131856.

The previous prime is 401867. The next prime is 401887. The reversal of 401886 is 688104.

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.

401886 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1360 + ... + 1628.

It is an arithmetic number, because the mean of its divisors is an integer number (36855).

2⁴⁰¹⁸⁸⁶ is an apocalyptic number.

401886 is an abundant number, since it is smaller than the sum of its proper divisors (482634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401886 is a wasteful number, since it uses less digits than its factorization.

401886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 401886 is about 633.9447925490. The cubic root of 401886 is about 73.7962498370.

The spelling of 401886 in words is "four hundred one thousand, eight hundred eighty-six".