650642043 has 16 divisors (see below), whose sum is σ = 910195712. Its totient is φ = 412884000.

The previous prime is 650642021. The next prime is 650642051. The reversal of 650642043 is 340246056.

It is not a de Polignac number, because 650642043 - 2⁵ = 650642011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 650642043.

It is not an unprimeable number, because it can be changed into a prime (650642093) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 51673 + ... + 63018.

It is an arithmetic number, because the mean of its divisors is an integer number (56887232).

Almost surely, 2^650642043 is an apocalyptic number.

650642043 is a deficient number, since it is larger than the sum of its proper divisors (259553669).

650642043 is a wasteful number, since it uses less digits than its factorization.

650642043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114786.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 650642043 is about 25507.6859593339. The cubic root of 650642043 is about 866.5242231543.

Adding to 650642043 its reverse (340246056), we get a palindrome (990888099).

The spelling of 650642043 in words is "six hundred fifty million, six hundred forty-two thousand, forty-three".