408842 has 32 divisors (see below), whose sum is σ = 777600. Its totient is φ = 157248.

The previous prime is 408841. The next prime is 408857. The reversal of 408842 is 248804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7688 + ... + 7740.

It is an arithmetic number, because the mean of its divisors is an integer number (24300).

2⁴⁰⁸⁸⁴² is an apocalyptic number.

408842 is a deficient number, since it is larger than the sum of its proper divisors (368758).

408842 is a wasteful number, since it uses less digits than its factorization.

408842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110.

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 408842 is about 639.4075382727. The cubic root of 408842 is about 74.2195815345.

The spelling of 408842 in words is "four hundred eight thousand, eight hundred forty-two".