401744 has 40 divisors (see below), whose sum is σ = 946368. Its totient is φ = 161280.

The previous prime is 401743. The next prime is 401771. The reversal of 401744 is 447104.

It is a super-2 number, since 2×401744² = 322796483072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401743) 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, 1799 + ... + 2009.

2⁴⁰¹⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473184).

401744 is an abundant number, since it is smaller than the sum of its proper divisors (544624).

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

401744 is a wasteful number, since it uses less digits than its factorization.

401744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 401744 is about 633.8327855200. The cubic root of 401744 is about 73.7875572376.

Adding to 401744 its reverse (447104), we get a palindrome (848848).

The spelling of 401744 in words is "four hundred one thousand, seven hundred forty-four", and thus it is an iban number.