405934343 has 2 divisors, whose sum is σ = 405934344. Its totient is φ = 405934342.

The previous prime is 405934283. The next prime is 405934471. The reversal of 405934343 is 343439504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405934343 - 2¹² = 405930247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405934043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202967171 + 202967172.

It is an arithmetic number, because the mean of its divisors is an integer number (202967172).

Almost surely, 2^405934343 is an apocalyptic number.

405934343 is a deficient number, since it is larger than the sum of its proper divisors (1).

405934343 is an equidigital number, since it uses as much as digits as its factorization.

405934343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 35.

The square root of 405934343 is about 20147.8123626363. The cubic root of 405934343 is about 740.4321453222.

The spelling of 405934343 in words is "four hundred five million, nine hundred thirty-four thousand, three hundred forty-three".