405740353 has 2 divisors, whose sum is σ = 405740354. Its totient is φ = 405740352.

The previous prime is 405740347. The next prime is 405740359. The reversal of 405740353 is 353047504.

It is a balanced prime because it is at equal distance from previous prime (405740347) and next prime (405740359).

It can be written as a sum of positive squares in only one way, i.e., 295427344 + 110313009 = 17188^2 + 10503^2 .

It is a cyclic number.

It is not a de Polignac number, because 405740353 - 2²⁵ = 372185921 is a prime.

It is not a weakly prime, because it can be changed into another prime (405740359) 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, 202870176 + 202870177.

It is an arithmetic number, because the mean of its divisors is an integer number (202870177).

Almost surely, 2^405740353 is an apocalyptic number.

It is an amenable number.

405740353 is a deficient number, since it is larger than the sum of its proper divisors (1).

405740353 is an equidigital number, since it uses as much as digits as its factorization.

405740353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 405740353 is about 20142.9976170380. The cubic root of 405740353 is about 740.3141793497.

Adding to 405740353 its reverse (353047504), we get a palindrome (758787857).

The spelling of 405740353 in words is "four hundred five million, seven hundred forty thousand, three hundred fifty-three".