409244 has 24 divisors (see below), whose sum is σ = 798336. Its totient is φ = 182000.

The previous prime is 409237. The next prime is 409259. The reversal of 409244 is 442904.

It is a happy number.

409244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3059 + ... + 3189.

It is an arithmetic number, because the mean of its divisors is an integer number (33264).

2⁴⁰⁹²⁴⁴ is an apocalyptic number.

409244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

409244 is a deficient number, since it is larger than the sum of its proper divisors (389092).

409244 is a wasteful number, since it uses less digits than its factorization.

409244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 409244 is about 639.7218145413. The cubic root of 409244 is about 74.2438994032.

The spelling of 409244 in words is "four hundred nine thousand, two hundred forty-four".