405393341 has 2 divisors, whose sum is σ = 405393342. Its totient is φ = 405393340.

The previous prime is 405393337. The next prime is 405393371. The reversal of 405393341 is 143393504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 293985316 + 111408025 = 17146^2 + 10555^2 .

It is a cyclic number.

It is not a de Polignac number, because 405393341 - 2² = 405393337 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 405393298 and 405393307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405393301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202696670 + 202696671.

It is an arithmetic number, because the mean of its divisors is an integer number (202696671).

Almost surely, 2^405393341 is an apocalyptic number.

It is an amenable number.

405393341 is a deficient number, since it is larger than the sum of its proper divisors (1).

405393341 is an equidigital number, since it uses as much as digits as its factorization.

405393341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 405393341 is about 20134.3820615384. The cubic root of 405393341 is about 740.1030663602.

The spelling of 405393341 in words is "four hundred five million, three hundred ninety-three thousand, three hundred forty-one".