401712 has 20 divisors (see below), whose sum is σ = 1037880. Its totient is φ = 133888.

The previous prime is 401711. The next prime is 401743. The reversal of 401712 is 217104.

It is a super-2 number, since 2×401712² = 322745061888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401691 and 401700.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4137 + ... + 4232.

It is an arithmetic number, because the mean of its divisors is an integer number (51894).

2⁴⁰¹⁷¹² is an apocalyptic number.

It is an amenable number.

401712 is an abundant number, since it is smaller than the sum of its proper divisors (636168).

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

401712 is a wasteful number, since it uses less digits than its factorization.

401712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8380 (or 8374 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 401712 is about 633.8075417664. The cubic root of 401712 is about 73.7855980592.

Adding to 401712 its reverse (217104), we get a palindrome (618816).

The spelling of 401712 in words is "four hundred one thousand, seven hundred twelve", and thus it is an iban number.