408355 has 4 divisors (see below), whose sum is σ = 490032. Its totient is φ = 326680.

The previous prime is 408347. The next prime is 408361. The reversal of 408355 is 553804.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 408355 - 2³ = 408347 is a prime.

It is a Duffinian number.

408355 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40831 + ... + 40840.

It is an arithmetic number, because the mean of its divisors is an integer number (122508).

2⁴⁰⁸³⁵⁵ is an apocalyptic number.

408355 is a deficient number, since it is larger than the sum of its proper divisors (81677).

408355 is an equidigital number, since it uses as much as digits as its factorization.

408355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81676.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 408355 is about 639.0266035151. The cubic root of 408355 is about 74.1901004658.

The spelling of 408355 in words is "four hundred eight thousand, three hundred fifty-five".