340630999 has 4 divisors (see below), whose sum is σ = 340718200. Its totient is φ = 340543800.

The previous prime is 340630987. The next prime is 340631003. The reversal of 340630999 is 999036043.

It is a happy number.

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 340630999 - 2⁹ = 340630487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340630919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37452 + ... + 45649.

It is an arithmetic number, because the mean of its divisors is an integer number (85179550).

Almost surely, 2^340630999 is an apocalyptic number.

340630999 is a deficient number, since it is larger than the sum of its proper divisors (87201).

340630999 is an equidigital number, since it uses as much as digits as its factorization.

340630999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87200.

The product of its (nonzero) digits is 157464, while the sum is 43.

The square root of 340630999 is about 18456.1913459955. The cubic root of 340630999 is about 698.3847101878.

The spelling of 340630999 in words is "three hundred forty million, six hundred thirty thousand, nine hundred ninety-nine".