350640641 has 8 divisors (see below), whose sum is σ = 378180264. Its totient is φ = 323182080.

The previous prime is 350640637. The next prime is 350640673. The reversal of 350640641 is 146046053.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 64320400 + 286320241 = 8020^2 + 16921^2 .

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

It is not a de Polignac number, because 350640641 - 2² = 350640637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (350640541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11120 + ... + 28721.

It is an arithmetic number, because the mean of its divisors is an integer number (47272533).

Almost surely, 2^350640641 is an apocalyptic number.

It is an amenable number.

350640641 is a deficient number, since it is larger than the sum of its proper divisors (27539623).

350640641 is a wasteful number, since it uses less digits than its factorization.

350640641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40531.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 350640641 is about 18725.4009569889. The cubic root of 350640641 is about 705.1595909853.

Adding to 350640641 its reverse (146046053), we get a palindrome (496686694).

The spelling of 350640641 in words is "three hundred fifty million, six hundred forty thousand, six hundred forty-one".