401841 has 30 divisors (see below), whose sum is σ = 675906. Its totient is φ = 237600.

The previous prime is 401839. The next prime is 401861. The reversal of 401841 is 148104.

It can be written as a sum of positive squares in only one way, i.e., 245025 + 156816 = 495^2 + 396^2 .

It is not a de Polignac number, because 401841 - 2¹ = 401839 is a prime.

It is a super-2 number, since 2×401841² = 322952378562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401861) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 9781 + ... + 9821.

2⁴⁰¹⁸⁴¹ is an apocalyptic number.

401841 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

401841 is a deficient number, since it is larger than the sum of its proper divisors (274065).

401841 is a wasteful number, since it uses less digits than its factorization.

401841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 401841 is about 633.9092995059. The cubic root of 401841 is about 73.7934953617.

Adding to 401841 its reverse (148104), we get a palindrome (549945).

It can be divided in two parts, 40 and 1841, that added together give a palindrome (1881).

The spelling of 401841 in words is "four hundred one thousand, eight hundred forty-one".