408928 has 24 divisors (see below), whose sum is σ = 867888. Its totient is φ = 188544.

The previous prime is 408923. The next prime is 408943. The reversal of 408928 is 829804.

It is a self number, because there is not a number n which added to its sum of digits gives 408928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76 + ... + 907.

It is an arithmetic number, because the mean of its divisors is an integer number (36162).

2⁴⁰⁸⁹²⁸ is an apocalyptic number.

It is an amenable number.

408928 is an abundant number, since it is smaller than the sum of its proper divisors (458960).

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

408928 is a wasteful number, since it uses less digits than its factorization.

408928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 408928 is about 639.4747844911. The cubic root of 408928 is about 74.2247852045.

The spelling of 408928 in words is "four hundred eight thousand, nine hundred twenty-eight".