649782060 has 48 divisors (see below), whose sum is σ = 1845027072. Its totient is φ = 170833600.

The previous prime is 649782047. The next prime is 649782061. The reversal of 649782060 is 60287946.

It is not an unprimeable number, because it can be changed into a prime (649782061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72006 + ... + 80525.

It is an arithmetic number, because the mean of its divisors is an integer number (38438064).

Almost surely, 2^649782060 is an apocalyptic number.

649782060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

649782060 is an abundant number, since it is smaller than the sum of its proper divisors (1195245012).

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

649782060 is a wasteful number, since it uses less digits than its factorization.

649782060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152614 (or 152612 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 649782060 is about 25490.8230545818. The cubic root of 649782060 is about 866.1422800823.

The spelling of 649782060 in words is "six hundred forty-nine million, seven hundred eighty-two thousand, sixty".