405214 has 12 divisors (see below), whose sum is σ = 637056. Its totient is φ = 193292.

The previous prime is 405211. The next prime is 405221. The reversal of 405214 is 412504.

405214 = 40² + 41² + ... + 108².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 867 + ... + 1249.

It is an arithmetic number, because the mean of its divisors is an integer number (53088).

2⁴⁰⁵²¹⁴ is an apocalyptic number.

405214 is a deficient number, since it is larger than the sum of its proper divisors (231842).

405214 is a wasteful number, since it uses less digits than its factorization.

405214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 405214 is about 636.5642151425. The cubic root of 405214 is about 73.9993912782. Note that the first 3 decimals are identical.

Adding to 405214 its reverse (412504), we get a palindrome (817718).

The spelling of 405214 in words is "four hundred five thousand, two hundred fourteen".