649395532 has 24 divisors (see below), whose sum is σ = 1149845760. Its totient is φ = 320891280.

The previous prime is 649395479. The next prime is 649395587. The reversal of 649395532 is 235593946.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116857 + ... + 122287.

It is an arithmetic number, because the mean of its divisors is an integer number (47910240).

Almost surely, 2^649395532 is an apocalyptic number.

It is an amenable number.

649395532 is a deficient number, since it is larger than the sum of its proper divisors (500450228).

649395532 is a wasteful number, since it uses less digits than its factorization.

649395532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5781 (or 5779 counting only the distinct ones).

The product of its digits is 874800, while the sum is 46.

The square root of 649395532 is about 25483.2402178373. The cubic root of 649395532 is about 865.9705021537.

The spelling of 649395532 in words is "six hundred forty-nine million, three hundred ninety-five thousand, five hundred thirty-two".