340668290 has 16 divisors (see below), whose sum is σ = 645477120. Its totient is φ = 129095280.

The previous prime is 340668283. The next prime is 340668343. The reversal of 340668290 is 92866043.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 896306 + ... + 896685.

It is an arithmetic number, because the mean of its divisors is an integer number (40342320).

Almost surely, 2^340668290 is an apocalyptic number.

340668290 is a deficient number, since it is larger than the sum of its proper divisors (304808830).

340668290 is a wasteful number, since it uses less digits than its factorization.

340668290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793017.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 340668290 is about 18457.2015755369. The cubic root of 340668290 is about 698.4101947679.

The spelling of 340668290 in words is "three hundred forty million, six hundred sixty-eight thousand, two hundred ninety".