350405665 has 8 divisors (see below), whose sum is σ = 425553408. Its totient is φ = 276946800.

The previous prime is 350405659. The next prime is 350405669. The reversal of 350405665 is 566504053.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-350405665 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 350405665.

It is not an unprimeable number, because it can be changed into a prime (350405669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421761 + ... + 422590.

It is an arithmetic number, because the mean of its divisors is an integer number (53194176).

Almost surely, 2^350405665 is an apocalyptic number.

It is an amenable number.

350405665 is a deficient number, since it is larger than the sum of its proper divisors (75147743).

350405665 is an equidigital number, since it uses as much as digits as its factorization.

350405665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844439.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 350405665 is about 18719.1256473159. The cubic root of 350405665 is about 705.0020387916.

The spelling of 350405665 in words is "three hundred fifty million, four hundred five thousand, six hundred sixty-five".