405760073 has 2 divisors, whose sum is σ = 405760074. Its totient is φ = 405760072.

The previous prime is 405760031. The next prime is 405760079. The reversal of 405760073 is 370067504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314423824 + 91336249 = 17732^2 + 9557^2 .

It is a cyclic number.

It is not a de Polignac number, because 405760073 - 2¹⁶ = 405694537 is a prime.

It is equal to p_21626960 and since 405760073 and 21626960 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (405760079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202880036 + 202880037.

It is an arithmetic number, because the mean of its divisors is an integer number (202880037).

Almost surely, 2^405760073 is an apocalyptic number.

It is an amenable number.

405760073 is a deficient number, since it is larger than the sum of its proper divisors (1).

405760073 is an equidigital number, since it uses as much as digits as its factorization.

405760073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 405760073 is about 20143.4871112228. The cubic root of 405760073 is about 740.3261728648.

The spelling of 405760073 in words is "four hundred five million, seven hundred sixty thousand, seventy-three".