649493524 has 12 divisors (see below), whose sum is σ = 1173278848. Its totient is φ = 314271000.

The previous prime is 649493513. The next prime is 649493563. The reversal of 649493524 is 425394946.

649493524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2618802 + ... + 2619049.

Almost surely, 2^649493524 is an apocalyptic number.

It is an amenable number.

649493524 is a deficient number, since it is larger than the sum of its proper divisors (523785324).

649493524 is a wasteful number, since it uses less digits than its factorization.

649493524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5237886 (or 5237884 counting only the distinct ones).

The product of its digits is 933120, while the sum is 46.

The square root of 649493524 is about 25485.1628207473. The cubic root of 649493524 is about 866.0140574854.

The spelling of 649493524 in words is "six hundred forty-nine million, four hundred ninety-three thousand, five hundred twenty-four".