649060 has 48 divisors (see below), whose sum is σ = 1524096. Its totient is φ = 230912.

The previous prime is 649039. The next prime is 649063. The reversal of 649060 is 60946.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (649063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7779 + ... + 7861.

It is an arithmetic number, because the mean of its divisors is an integer number (31752).

2⁶⁴⁹⁰⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 649060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (762048).

649060 is an abundant number, since it is smaller than the sum of its proper divisors (875036).

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

649060 is a wasteful number, since it uses less digits than its factorization.

649060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 649060 is about 805.6426006611. The cubic root of 649060 is about 86.5821332217.

The spelling of 649060 in words is "six hundred forty-nine thousand, sixty".