408380 has 24 divisors (see below), whose sum is σ = 980448. Its totient is φ = 139968.

The previous prime is 408379. The next prime is 408389. The reversal of 408380 is 83804.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 408380.

It is not an unprimeable number, because it can be changed into a prime (408389) by changing a digit.

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, 1319 + ... + 1598.

It is an arithmetic number, because the mean of its divisors is an integer number (40852).

2⁴⁰⁸³⁸⁰ is an apocalyptic number.

It is an amenable number.

408380 is an abundant number, since it is smaller than the sum of its proper divisors (572068).

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

408380 is a wasteful number, since it uses less digits than its factorization.

408380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2933 (or 2931 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 408380 is about 639.0461642166. The cubic root of 408380 is about 74.1916144383.

The spelling of 408380 in words is "four hundred eight thousand, three hundred eighty".