649321032 has 32 divisors (see below), whose sum is σ = 1624171680. Its totient is φ = 216324480.

The previous prime is 649320871. The next prime is 649321033. The reversal of 649321032 is 230123946.

649321032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (649321033) 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, 46732 + ... + 59012.

It is an arithmetic number, because the mean of its divisors is an integer number (50755365).

Almost surely, 2^649321032 is an apocalyptic number.

It is an amenable number.

649321032 is an abundant number, since it is smaller than the sum of its proper divisors (974850648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649321032 is a wasteful number, since it uses less digits than its factorization.

649321032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14493 (or 14489 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 649321032 is about 25481.7784308710. The cubic root of 649321032 is about 865.9373855776.

Adding to 649321032 its reverse (230123946), we get a palindrome (879444978).

The spelling of 649321032 in words is "six hundred forty-nine million, three hundred twenty-one thousand, thirty-two".