405346 has 8 divisors (see below), whose sum is σ = 640080. Its totient is φ = 191988.

The previous prime is 405343. The next prime is 405347. The reversal of 405346 is 643504.

405346 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (405341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5296 + ... + 5371.

It is an arithmetic number, because the mean of its divisors is an integer number (80010).

2⁴⁰⁵³⁴⁶ is an apocalyptic number.

405346 is a deficient number, since it is larger than the sum of its proper divisors (234734).

405346 is a wasteful number, since it uses less digits than its factorization.

405346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10688.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 405346 is about 636.6678883060. The cubic root of 405346 is about 74.0074256001.

The spelling of 405346 in words is "four hundred five thousand, three hundred forty-six".