340305499 has 4 divisors (see below), whose sum is σ = 342753880. Its totient is φ = 337857120.

The previous prime is 340305491. The next prime is 340305557. The reversal of 340305499 is 994503043.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 340305499 - 2³ = 340305491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340305491) 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 in 3 ways as a sum of consecutive naturals, for example, 1223982 + ... + 1224259.

It is an arithmetic number, because the mean of its divisors is an integer number (85688470).

Almost surely, 2^340305499 is an apocalyptic number.

340305499 is a deficient number, since it is larger than the sum of its proper divisors (2448381).

340305499 is a wasteful number, since it uses less digits than its factorization.

340305499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448380.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 340305499 is about 18447.3710593136. The cubic root of 340305499 is about 698.1621852551.

The spelling of 340305499 in words is "three hundred forty million, three hundred five thousand, four hundred ninety-nine".