649338206 has 16 divisors (see below), whose sum is σ = 1062944640. Its totient is φ = 295045080.

The previous prime is 649338181. The next prime is 649338211. The reversal of 649338206 is 602833946.

It is a congruent 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, 115775 + ... + 121253.

It is an arithmetic number, because the mean of its divisors is an integer number (66434040).

Almost surely, 2^649338206 is an apocalyptic number.

649338206 is a deficient number, since it is larger than the sum of its proper divisors (413606434).

649338206 is a wasteful number, since it uses less digits than its factorization.

649338206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10879.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 649338206 is about 25482.1154145412. The cubic root of 649338206 is about 865.9450199509.

The spelling of 649338206 in words is "six hundred forty-nine million, three hundred thirty-eight thousand, two hundred six".