409941 has 24 divisors (see below), whose sum is σ = 704704. Its totient is φ = 233280.

The previous prime is 409933. The next prime is 409943. The reversal of 409941 is 149904.

It is not a de Polignac number, because 409941 - 2³ = 409933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1581 + ... + 1821.

2⁴⁰⁹⁹⁴¹ is an apocalyptic number.

It is an amenable number.

409941 is a deficient number, since it is larger than the sum of its proper divisors (294763).

409941 is an equidigital number, since it uses as much as digits as its factorization.

409941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 409941 is about 640.2663508260. The cubic root of 409941 is about 74.2860247592.

The spelling of 409941 in words is "four hundred nine thousand, nine hundred forty-one".