340057 has 2 divisors, whose sum is σ = 340058. Its totient is φ = 340056.

The previous prime is 340049. The next prime is 340061. The reversal of 340057 is 750043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331776 + 8281 = 576^2 + 91^2 .

It is a cyclic number.

It is not a de Polignac number, because 340057 - 2³ = 340049 is a prime.

It is not a weakly prime, because it can be changed into another prime (340007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170028 + 170029.

It is an arithmetic number, because the mean of its divisors is an integer number (170029).

2³⁴⁰⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

340057 is a deficient number, since it is larger than the sum of its proper divisors (1).

340057 is an equidigital number, since it uses as much as digits as its factorization.

340057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 340057 is about 583.1440645329. The cubic root of 340057 is about 69.7992205779.

The spelling of 340057 in words is "three hundred forty thousand, fifty-seven".