408213285 has 8 divisors (see below), whose sum is σ = 653141280. Its totient is φ = 217713744.

The previous prime is 408213241. The next prime is 408213287. The reversal of 408213285 is 582312804.

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

It is not a de Polignac number, because 408213285 - 2¹⁰ = 408212261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408213287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13607095 + ... + 13607124.

It is an arithmetic number, because the mean of its divisors is an integer number (81642660).

Almost surely, 2^408213285 is an apocalyptic number.

It is an amenable number.

408213285 is a deficient number, since it is larger than the sum of its proper divisors (244927995).

408213285 is a wasteful number, since it uses less digits than its factorization.

408213285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27214227.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 408213285 is about 20204.2887773859. The cubic root of 408213285 is about 741.8151719346.

The spelling of 408213285 in words is "four hundred eight million, two hundred thirteen thousand, two hundred eighty-five".