340460557 has 2 divisors, whose sum is σ = 340460558. Its totient is φ = 340460556.

The previous prime is 340460521. The next prime is 340460579. The reversal of 340460557 is 755064043.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 336575716 + 3884841 = 18346^2 + 1971^2 .

It is an emirp because it is prime and its reverse (755064043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340460557 - 2¹¹ = 340458509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340466557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170230278 + 170230279.

It is an arithmetic number, because the mean of its divisors is an integer number (170230279).

Almost surely, 2^340460557 is an apocalyptic number.

It is an amenable number.

340460557 is a deficient number, since it is larger than the sum of its proper divisors (1).

340460557 is an equidigital number, since it uses as much as digits as its factorization.

340460557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 340460557 is about 18451.5732933536. The cubic root of 340460557 is about 698.2682068490.

The spelling of 340460557 in words is "three hundred forty million, four hundred sixty thousand, five hundred fifty-seven".