340948457 has 2 divisors, whose sum is σ = 340948458. Its totient is φ = 340948456.

The previous prime is 340948429. The next prime is 340948469. The reversal of 340948457 is 754849043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328914496 + 12033961 = 18136^2 + 3469^2 .

It is a cyclic number.

It is not a de Polignac number, because 340948457 - 2²² = 336754153 is a prime.

It is not a weakly prime, because it can be changed into another prime (340948477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170474228 + 170474229.

It is an arithmetic number, because the mean of its divisors is an integer number (170474229).

Almost surely, 2^340948457 is an apocalyptic number.

It is an amenable number.

340948457 is a deficient number, since it is larger than the sum of its proper divisors (1).

340948457 is an equidigital number, since it uses as much as digits as its factorization.

340948457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 340948457 is about 18464.7896549081. The cubic root of 340948457 is about 698.6016007767.

The spelling of 340948457 in words is "three hundred forty million, nine hundred forty-eight thousand, four hundred fifty-seven".