649460 has 24 divisors (see below), whose sum is σ = 1559040. Its totient is φ = 222624.

The previous prime is 649457. The next prime is 649469. The reversal of 649460 is 64946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649469) 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 7 ways as a sum of consecutive naturals, for example, 2180 + ... + 2459.

It is an arithmetic number, because the mean of its divisors is an integer number (64960).

2⁶⁴⁹⁴⁶⁰ is an apocalyptic number.

It is an amenable number.

649460 is an abundant number, since it is smaller than the sum of its proper divisors (909580).

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

649460 is a wasteful number, since it uses less digits than its factorization.

649460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4655 (or 4653 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 649460 is about 805.8908114627. The cubic root of 649460 is about 86.5999157283.

The spelling of 649460 in words is "six hundred forty-nine thousand, four hundred sixty".