649500032 has 32 divisors (see below), whose sum is σ = 1298088720. Its totient is φ = 323705344.

The previous prime is 649500029. The next prime is 649500041. The reversal of 649500032 is 230005946.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-3 number, since 3×649500032³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 649499968 and 649500004.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 32573 + ... + 48579.

Almost surely, 2^649500032 is an apocalyptic number.

It is an amenable number.

649500032 is a deficient number, since it is larger than the sum of its proper divisors (648588688).

649500032 is a wasteful number, since it uses less digits than its factorization.

649500032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16338 (or 16326 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 649500032 is about 25485.2905025625. The cubic root of 649500032 is about 866.0169499960.

Adding to 649500032 its reverse (230005946), we get a palindrome (879505978).

The spelling of 649500032 in words is "six hundred forty-nine million, five hundred thousand, thirty-two".