408215 has 8 divisors (see below), whose sum is σ = 515760. Its totient is φ = 309312.

The previous prime is 408211. The next prime is 408217. The reversal of 408215 is 512804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 408215 - 2² = 408211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408211) 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, 2054 + ... + 2243.

It is an arithmetic number, because the mean of its divisors is an integer number (64470).

2⁴⁰⁸²¹⁵ is an apocalyptic number.

408215 is a deficient number, since it is larger than the sum of its proper divisors (107545).

408215 is a wasteful number, since it uses less digits than its factorization.

408215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4321.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 408215 is about 638.9170525193. The cubic root of 408215 is about 74.1816210780.

The spelling of 408215 in words is "four hundred eight thousand, two hundred fifteen".