350642641 has 4 divisors (see below), whose sum is σ = 350824500. Its totient is φ = 350460784.

The previous prime is 350642507. The next prime is 350642657. The reversal of 350642641 is 146246053.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 218300625 + 132342016 = 14775^2 + 11504^2 .

It is a cyclic number.

It is not a de Polignac number, because 350642641 - 2⁹ = 350642129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (350649641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88006 + ... + 91903.

It is an arithmetic number, because the mean of its divisors is an integer number (87706125).

Almost surely, 2^350642641 is an apocalyptic number.

It is an amenable number.

350642641 is a deficient number, since it is larger than the sum of its proper divisors (181859).

350642641 is a wasteful number, since it uses less digits than its factorization.

350642641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181858.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 350642641 is about 18725.4543603086. The cubic root of 350642641 is about 705.1609316898.

Adding to 350642641 its reverse (146246053), we get a palindrome (496888694).

The spelling of 350642641 in words is "three hundred fifty million, six hundred forty-two thousand, six hundred forty-one".