3405240457 has 2 divisors, whose sum is σ = 3405240458. Its totient is φ = 3405240456.

The previous prime is 3405240451. The next prime is 3405240467. The reversal of 3405240457 is 7540425043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2904778816 + 500461641 = 53896^2 + 22371^2 .

It is an emirp because it is prime and its reverse (7540425043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3405240457 - 2¹⁹ = 3404716169 is a prime.

It is not a weakly prime, because it can be changed into another prime (3405240451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1702620228 + 1702620229.

It is an arithmetic number, because the mean of its divisors is an integer number (1702620229).

Almost surely, 2^3405240457 is an apocalyptic number.

It is an amenable number.

3405240457 is a deficient number, since it is larger than the sum of its proper divisors (1).

3405240457 is an equidigital number, since it uses as much as digits as its factorization.

3405240457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 34.

The square root of 3405240457 is about 58354.4381945367. The cubic root of 3405240457 is about 1504.4667532444.

The spelling of 3405240457 in words is "three billion, four hundred five million, two hundred forty thousand, four hundred fifty-seven".