350640665 has 8 divisors (see below), whose sum is σ = 422972928. Its totient is φ = 279043120.

The previous prime is 350640637. The next prime is 350640673. The reversal of 350640665 is 566046053.

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

It is not a de Polignac number, because 350640665 - 2¹² = 350636569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182627 + ... + 184536.

It is an arithmetic number, because the mean of its divisors is an integer number (52871616).

Almost surely, 2^350640665 is an apocalyptic number.

It is an amenable number.

350640665 is a deficient number, since it is larger than the sum of its proper divisors (72332263).

350640665 is a wasteful number, since it uses less digits than its factorization.

350640665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367359.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 350640665 is about 18725.4015978296. The cubic root of 350640665 is about 705.1596070738.

The spelling of 350640665 in words is "three hundred fifty million, six hundred forty thousand, six hundred sixty-five".