405307 has 4 divisors (see below), whose sum is σ = 463216. Its totient is φ = 347400.

The previous prime is 405299. The next prime is 405323. The reversal of 405307 is 703504.

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

It is a cyclic number.

It is not a de Polignac number, because 405307 - 2³ = 405299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405347) 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, 28944 + ... + 28957.

It is an arithmetic number, because the mean of its divisors is an integer number (115804).

2⁴⁰⁵³⁰⁷ is an apocalyptic number.

405307 is a deficient number, since it is larger than the sum of its proper divisors (57909).

405307 is an equidigital number, since it uses as much as digits as its factorization.

405307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57908.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 405307 is about 636.6372593557. The cubic root of 405307 is about 74.0050520047.

The spelling of 405307 in words is "four hundred five thousand, three hundred seven".