405822941 has 2 divisors, whose sum is σ = 405822942. Its totient is φ = 405822940.

The previous prime is 405822917. The next prime is 405822943. The reversal of 405822941 is 149228504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248220025 + 157602916 = 15755^2 + 12554^2 .

It is a cyclic number.

It is not a de Polignac number, because 405822941 - 2²² = 401628637 is a prime.

Together with 405822943, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405822943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202911470 + 202911471.

It is an arithmetic number, because the mean of its divisors is an integer number (202911471).

Almost surely, 2^405822941 is an apocalyptic number.

It is an amenable number.

405822941 is a deficient number, since it is larger than the sum of its proper divisors (1).

405822941 is an equidigital number, since it uses as much as digits as its factorization.

405822941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 405822941 is about 20145.0475551685. The cubic root of 405822941 is about 740.3644059861.

The spelling of 405822941 in words is "four hundred five million, eight hundred twenty-two thousand, nine hundred forty-one".