649530600 has 192 divisors, whose sum is σ = 2125578240. Its totient is φ = 163833600.

The previous prime is 649530593. The next prime is 649530617. The reversal of 649530600 is 6035946.

It is a happy number.

649530600 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 873829 + ... + 874571.

It is an arithmetic number, because the mean of its divisors is an integer number (11070720).

Almost surely, 2^649530600 is an apocalyptic number.

649530600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 649530600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1062789120).

649530600 is an abundant number, since it is smaller than the sum of its proper divisors (1476047640).

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

649530600 is a wasteful number, since it uses less digits than its factorization.

649530600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 831 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 649530600 is about 25485.8902139988. The cubic root of 649530600 is about 866.0305358259.

The spelling of 649530600 in words is "six hundred forty-nine million, five hundred thirty thousand, six hundred".