401716 has 12 divisors (see below), whose sum is σ = 803488. Its totient is φ = 172152.

The previous prime is 401711. The next prime is 401743. The reversal of 401716 is 617104.

It is a happy number.

401716 is an admirable number.

It is a super-2 number, since 2×401716² = 322751489312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401693 and 401702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401711) by changing a digit.

401716 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7146 + ... + 7201.

2⁴⁰¹⁷¹⁶ is an apocalyptic number.

It is an amenable number.

401716 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

401716 is a wasteful number, since it uses less digits than its factorization.

401716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14358 (or 14356 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 401716 is about 633.8106972906. The cubic root of 401716 is about 73.7858429622.

The spelling of 401716 in words is "four hundred one thousand, seven hundred sixteen".