401726 has 8 divisors (see below), whose sum is σ = 648984. Its totient is φ = 185400.

The previous prime is 401711. The next prime is 401743. The reversal of 401726 is 627104.

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

It is a super-2 number, since 2×401726² = 322767558152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401698 and 401707.

It is a congruent number.

It is an unprimeable number.

401726 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 3 ways as a sum of consecutive naturals, for example, 7700 + ... + 7751.

It is an arithmetic number, because the mean of its divisors is an integer number (81123).

2⁴⁰¹⁷²⁶ is an apocalyptic number.

401726 is a deficient number, since it is larger than the sum of its proper divisors (247258).

401726 is a wasteful number, since it uses less digits than its factorization.

401726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15466.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 401726 is about 633.8185860323. The cubic root of 401726 is about 73.7864552126.

The spelling of 401726 in words is "four hundred one thousand, seven hundred twenty-six".