649642322 has 16 divisors (see below), whose sum is σ = 1115664192. Its totient is φ = 277920240.

The previous prime is 649642309. The next prime is 649642327. The reversal of 649642322 is 223246946.

It is not an unprimeable number, because it can be changed into a prime (649642327) 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 7 ways as a sum of consecutive naturals, for example, 33329 + ... + 49092.

It is an arithmetic number, because the mean of its divisors is an integer number (69729012).

Almost surely, 2^649642322 is an apocalyptic number.

649642322 is a deficient number, since it is larger than the sum of its proper divisors (466021870).

649642322 is a wasteful number, since it uses less digits than its factorization.

649642322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82993.

The product of its digits is 124416, while the sum is 38.

The square root of 649642322 is about 25488.0819600063. The cubic root of 649642322 is about 866.0801866130.

The spelling of 649642322 in words is "six hundred forty-nine million, six hundred forty-two thousand, three hundred twenty-two".